该系统通过调整两块可动子镜,使其焦面光斑的质心位置与固定镜的重合校正子镜间的相对倾斜。
Segment alignment of tip-tilt is fulfilled by overlapping diffraction pattern centroids of the three individual segments on the focal plane.
在更换电源之前,我们必须从望远镜上取下一个用四个螺丝固定的扶手。
Before we could replace the power supply, we would have to remove from the telescope a handrail fixed with four screws.
直肠固定术和直肠前切除术已在腹腔镜下进行,效果很好。
Rectopexy and anterior resection have been performed laparoscopically with good results.
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