26. Methods 131 cases(133 eyes)of retinal detachment were performed extern retinal operative approach and visible cryocoagulation by microscope during the operations.
27. Applying the extern feedback control method, we design two different control laws, and add the input control signals to the first and the third equations respectively.
应用外力反馈控制法,设计了两个不同的控制律,分别将控制信号加在第一和第三个方程上。
youdao
28. The temperature of the tube went up and then the expenditure of expensive alloy increased by using extern spiral finned tube, which enhanced the external heat transfer.
采用外螺旋肋片管实现高温侧强化传热后,再热器管壁温度升高,所需贵重金属耗量增加。
youdao
29. The temperature of the tube went up and then the expenditure of expensive alloy increased by using extern spiral finned tube, which enhanced the external heat transfer.