If the strainer has a multi-layer structure, the oil strainer has various oil fume filtering methods so as to enhance oil filtering efficiency.
如果是多层，油网有多种油烟过滤方式，提高了滤油率。
The various random noises in laser gyro are the main factor affecting the accuracy. In accordance with the property of its noise, traditional filtering methods have many shortages.
各种随机噪声是导致激光陀螺产生误差的主要因素，且其性质特殊，很难用传统的滤波方法去除。
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