噪声作业 working of moise exposure 接噪时间 time of noise exposure 工作日等效连续A声级 equivalent continuous A-weighted sound pressure level（in a workshift） ..
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Photos are unavoidably limited by the trade-off between depth of field, exposure time and image noise.
你必须在景深、曝光时间和噪点之间做出权衡。
Steering exposure time of a camera through control electron shutter with laser echo pulse is an effective method for inhibiting background noise.
用激光回波脉冲控制电子快门来操纵摄像机的曝光时间，是抑制背景噪声的一种有效方法。
Conclusion Exposure to high levels of noise would be harmful to worker's personality trait but without accumulated effect as time proceeded.
结论强噪声作业对作业人员人格特征有不良影响，但不具有时间剂量上的累积效应。
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