网络例句
噪声级
- 与 噪声级 相关的网络例句 [注：此内容来源于网络，仅供参考]
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The limited Value of specific A-weighted sound level in the present standard JB/ TQh341-84 promulgated by the Ministry, which is applied to determine the unaccuracy of noise characteristics for axial-flow ventilators has been discussed.
论证了现行JB/TQh341-84部颁标准中用比A声级限值来判定轴流通风机噪声特性的不准确性，并提出了A声级限值标准及对高压大流量轴流通风机应采取的降噪措施。
- 推荐网络例句
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They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.
他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。
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In slot 2 in your bag put wrapping paper, quantity does not matter in this case.
在你的书包里槽2把包装纸、数量无关紧要。
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Store this product in a sealed, lightproof, dry and cool place.
密封，遮光，置阴凉干燥处。