The experiment came into use single light path critical angle method, output signals were detected by four-quadrant receiver, micro-displacement drive element were piezoelectric ceramics.

实验采用单光路临界角法，用四象限探测器探测输出信号，物面微位移采用压电陶瓷作为驱动元件。

youdao

Carson was headed down a path of self-distraction until a critical moment in his youth.

如果卡森不是抓住了青年时期时的一个关键时刻，他很可能走上了一条自我毁灭的道路。

youdao

Carson was headed down a path of self-destruction until a critical moment in his youth.

如果不是抓住了青年时期的一个关键时刻，卡森很可能走上一条自我毁灭的道路。

youdao

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