autocollimator
n. 自准直仪,自动准直光管
n.准直望远镜,自准直望远镜,具标度尺的望远镜
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n. 自准直仪,自动准直光管
n.准直望远镜,自准直望远镜,具标度尺的望远镜
collator foamflower hoppergrass immolation peeress sacrificially ted