The two laser beam system has been used to measure the relative density of linen dust, with the feature of wide measurement range, good sensitivity and restraining the intensity fluctuation noise.
本文采用双光路激光系统，对亚麻尘的相对浓度进行了连续测量，具有测量范围宽、灵敏度好、抑制激光强度起伏噪声等特点。
The laser target designator has two functions which are guidance and range finding.
激光目标指示器的两个主要功能是为寻的武器提供目标指示和测距。
The laser target designator has two functions which are guidance and range finding.
激光目标指示器的两个主要功能是为寻的武器提供目标指示和测距。
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