This light was used to track the submarine and destroy it.

这种荧光可以用来追踪潜艇并摧毁它。

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Light metal track layers increased trafficability through the heavy ground.

轻金属覆层增加了车辆通过笨重路面时的机动性。

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Light metal track layers increased trafficability through the heavy ground.

轻金属覆层增加了车辆通过笨重路面时的机动性。

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