... dipvergence (1)双目垂直角差(2)高低发散差 direct-fire etelescope 指挥射击望远镜 disc of confusion 弥散斑 ...
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指挥射击望远镜
Command firing telescope
以上为机器翻译结果，长、整句建议使用 人工翻译 。
联络用的电话线交错纵横，迫击炮班正在射击，军士倚着胸墙举着望远镜透过树篱缺口观察，指挥迫击炮开火。
Communication wires ran up and down. Mortar crews worked their weapons. Sergeants with binoculars leaned against the bank and peered through openings cut in the hedge, directing the mortar fire.
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