Xiao Yan had finally stepped into the Dou Di class, Xiao Li had broken through to the Dou Sheng class after Xiao Yan had become a Dou Di, and Xiao Ding, whose strength was not much in the early stages, had also broken through to the Dou Sheng class after Xiao Yan had advanced to the Dou Di class. It could be seen that Xiao Yan was the strongest. Xiao Li and Xiao Ding had both reached the Dou Sheng class after Xiao Yan had become a Dou Di. However, Xiao Yan's strength had far exceeded Xiao Ding's in the early stages. There was no detailed information regarding the comparison between Xiao Li and Xiao Yan's strength in the early stages. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!

|type| merit| drawback| |--|--|--| |reflecting| 1. It was cost-effective. If one wanted to buy a large-caliber telescope with limited funds, a reflective telescope was a better choice. <br>2. It was well made and maintained to produce high-definition, high-contrast images. <br>3. The lens barrel had good maneuverability, and its length was generally not more than 8 times the length of the primary mirror. <br>4. The center of gravity is lower than the eyepieces, compact, stable, and the height of the eyepieces is appropriate. <br>5. It was the only telescope that could accurately reflect the shape of the target. <br>6. It had no color difference, a wide observation range, and was easier to manufacture than a refraction telescope. <br>7. The large-aperture imaging effect was better, which was beneficial for high-resolution observation. Moreover, the focal length was smaller, which was suitable for observing and shooting deep-space celestial bodies. <br>8. The cost was low, and many hobbyists could grind it themselves.| 1. Mirror cleaning and optical system correction were relatively cumbersome. <br>2. The larger the aperture, the smaller the field of view. <br>3. The objective lens needed to be coated regularly.| |refractive| 1. It had a large field of view, a long focal length, and a large scale, which was suitable for measuring the precise position of stars. <br>2. The high-quality refraction telescope produced a high-contrast image that could withstand zooming in and was colorful. <br>3. It is usually more robust than other types of binoculars, and the lens is less prone to misplacement. <br>4. It was suitable for observers who wanted a device that could be easily disassembled, as well as people who didn't want to spend time repairing optical components. <br>5. Small (80mm diameter or less) refraction telescope had the advantage of being portable. It had a simple structure and high reliability. It could be carried with you when traveling. It could completely meet the needs of photography when the shooting requirements were not high. Moreover, it could be easily connected to the camera and used as a telephoto lens.| 1. There were residual color differences, and the absorption of radiation in the infrared and infrared bands was very strong. <br>2. size would lose their sharp focus and were expensive. <br>3. The length of the lens barrel was too long, making it cumbersome and inflexible. <br>4. For deep-space observers, they might not be able to collect enough light to observe dim objects, and the observation angle was narrow. <br>5. The price was the most expensive under the same caliber.| <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Xiao Yan and Xiao Li were blood brothers. They were Xiao Ding's younger brothers. Hurry up and click on the link below to return to the super classic original work," Battle Through the Heavens "!
Xiao Yan and Xiao Li were blood brothers. They were the younger brothers of Xiao Ding and Xiao Yu. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan had two brothers, Xiao Li and Xiao Ding. Xiao Li was Xiao Yan's second brother. He grew up together with Xiao Yan in the Xiao clan of Wu Tan City. His talent was outstanding and his strength was powerful. He was very concerned and took care of Xiao Yan. Even when Xiao Yan was regarded as trash, he still supported and encouraged Xiao Yan. After Xiao Yan became a Dou Di, Xiao Li became the clan leader of the Xiao clan. Xiao Ding was Xiao Yan's big brother. He had been sent to the Gu clan by his father when Xiao Ding was very young. Hence, he did not spend much time with Xiao Yan. Xiao Ding had become one of the leaders of the younger generation of the Xiao clan in the Gu clan. After which, he had reunited with Xiao Yan. The two of them had a deep brotherly relationship. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
The protagonist Xiao Yan had two brothers, Xiao Ding and Xiao Li. Xiao Ding was Xiao Yan's big brother. He was talented, intelligent, and powerful. He was extremely concerned and protective of Xiao Yan and had given him a lot of help and support during Xiao Yan's training. However, his body was relatively weak. Later on, he was captured by the Hall of Souls and his Dou Qi was cruelly stripped away. Xiao Li was Xiao Yan's second brother. He had a forthright character and was loyal. He had grown up with Xiao Yan and had experienced many difficulties and challenges. With Xiao Yan's help, Xiao Li successfully broke through to the Dou Huang class and became a powerful Dou Zhe. be ignorant of Hurry up and click on the link below to return to the super classic original work," Battle Through the Heavens "!
Xiao Yan had two brothers, Xiao Li and Xiao Ding. Xiao Li was Xiao Yan's second brother. He was older than Xiao Yan in the Xiao clan and his talent was not bad. However, due to the shadow of his childhood, his character was somewhat gloomy. With Xiao Ding's help, Xiao Li had successfully broken through to the Dou Ling class and become a strong person. Later on, he joined hands with Xiao Yan to establish Xiao Gate and became the hall master of Xiao Gate. Xiao Ding was Xiao Yan's big brother. He was an alchemist and had once helped Xiao Yan refine quite a number of medicinal pills. With Xiao Yan's help, Xiao Ding successfully broke through to the Dou Wang class and became a strong person. Later on, he joined hands with Xiao Yan to establish the Xiao Gate and became an Elder in the Xiao Gate. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
No, Xiao Yan and Xiao Li were blood brothers, Xiao Ding and Xiao Li were cousins, while Xiao Yan and Xiao Ding were not related by blood. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Yes, Xiao Yan's three brothers were blood brothers. Xiao Li and Xiao Ding were Xiao Yan's blood brothers. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan had a brother called Xiao Li. He was the second son of the Xiao clan leader Xiao Zhan and also Xiao Yan's second brother. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!
Xiao Yan had two brothers, Xiao Ding and Xiao Li. Xiao Ding was Xiao Yan's big brother and the relationship between the two of them was very good. During the three years when Xiao Yan was reduced to trash, Xiao Ding had left the Xiao clan three years ago in order to allow his younger brother to have a place to settle down in the future. He had headed to the Tager Desert to establish the Desert Metal Mercenary Company. Xiao Li was Xiao Yan's second brother. He took care of Xiao Yan in every aspect of his life. During the period when Xiao Yan was reduced to a useless person, Xiao Li was obliged to follow Xiao Ding to establish the Desert Metal Mercenary Company. Hurry up and click on the link below to return to the original classic, Battle Through the Heavens!