煤矿噪声和振动主要来源于井下机械化生产,其危害取决于生产过程、生产工艺和所使用的工具,如风动凿岩机和局部通风机的噪声和振动等。长期在噪声下工作,可能造成( )下降,甚至引起耳聋;长期接触振动,可能导致局部疼痛,甚至引起内脏器官损伤。
某房地产企业计划一季度在本公司A.B.C三个地区市场按4000元/m2、5000元/m2、6000元/m2的价格销售商品房2000m2、2500m2、3000m2,但季末检查的情况是A地区以3900元/m2的价格售出2300m2,B地区以4600元/m2的价格售出2200m2,C地区以6000元/m2的价格售出3300m2。 通过分析,可以得出以下结论( )。
What Does Kilowatt-Hour Mean? Kilowatt-hour (kWh) is a unit used to measure electrical energy expended or used over time. It is commonly used as a unit of electrical energy in engineering, academic and commercial applications. One kilowatt-hour is the equivalent of one kilowatt of power ...
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What does“like” mean? 我来答 1个回答 #热议# 作为女性,你生活中有感受到“不安全感”的时刻吗?濒危物种1718 2022-06-10 · TA获得超过1129个赞 知道答主 回答量:5 采纳率:0% 帮助的人:134 我也去答题访问个人页 关注 展开全部 If you, like, dislike "like", maybe, like, ...
Meaning of Quenti - What does Quenti mean? Read the name meaning, origin, pronunciation, and popularity of the baby name Quenti for boys.
May I ask what does that mean? 翻译结果5复制译文编辑译文朗读译文返回顶部 Ask is what meaning? 相关内容 ais not valid integer value 是无效整数值[translate] a机加工工艺保证的尺寸 Machining craft guarantee size[translate] aSo your log is what mean 如此您的日志是什么手段[translate] ...
What does“like” mean? If you, like, dislike "like", maybe, like, think again 如果你,呃,不喜欢“like(呃)”这个词,那可能,呃,再想一想吧 Nobody seems to like "like" — or nobody with access to a printing press. Letters to newspapers and comment pieces often harrumph about this new...
21 What does the scripture mean, which saith that God placed acherubim and a flaming sword on the east of the garden of bEden, lest our first parents should enter and partake of the fruit of the tree of life, and live forever? 21. Inee engencho yamariko aya ninki, agoteba ng’a...