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工作学习 / 科技杂谈 / 请教，这是什么仪器？
-sailor(Ocean & Mountain);
2017-10-16
{134}
(#11114707@0)
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像是红外光栅报警系统的反射镜
-alang(阿朗);
2017-10-16
(#11114723@0)
+1
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Deck alignment photocell?
-troyd(.);
2017-10-16
(#11114726@0)
+1
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有点像监控deck状态的，防止垮塌
-alang(阿朗);
2017-10-16
(#11114881@0)
+1
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They were on a hanging bridge. There were about totally 16.
-sailor(Ocean & Mountain);
2017-10-16
(#11115103@0)
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应该是监测桥梁是否发生比较严重的形变。
-madog(武疯子);
2017-10-16
(#11115114@0)
+1