暴露聲級 的英文怎麼說
中文拼音 [bàolòushēngjí]
暴露聲級
英文
exposure sound level-
In this paper the train running noise level has been predicted with the theory of point sound source. the sound exposure level of a train set pass, equivalent continuous sound level and maximum sound level of a train set pass has been taken as estimate values, and some kinds of affixation attenuation on the course of noise propagation is considered, then the corresponding visual software has been developed. these make it convenient and precise to predict the noise level
本文從點聲源的理論出發，對列車運行噪聲進行預測計算，採用一列車通過時的單發暴露聲級、時間特性的最大聲壓級和一定時間內的等效聲級等作為噪聲評價量，並考慮了噪聲傳播過程中的各種附加衰減，編制了相應的可視化軟體，使噪聲預測計算方便、準確。The arc welding is one of the basic technology of shipping manufacture, the problems may be harm for the health of operators, who are exposed to the environment of welding fume, noxious gas, noise and electromagnetism for a long time, are always being paid attention by all government departments and professionals
摘要電弧焊接是船舶製造中的基礎工藝之一，對操作人員長期暴露在焊接煙塵、有害氣體、噪聲及電磁等環境下可能危害健康的問題一直是各級政府部門和各界專業人士的關注的重點。
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