摘要通过混凝土腐蚀的正交试验考察地下水中的多成分因素在混凝土腐蚀中的影响效应.
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重度盐碱地可开采高矿化地下水,生产芒硝和食盐.
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Due to over pumping groundwater, hazard of mantled karst collapse may often take place there.
因过量抽取地下水, 造成覆盖型岩溶塌陷灾害.
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Take the manhole bag a purse that can hide valuables by unfolding to a sewer cover.
有[人孔盖提袋],摊开来就像下水道人孔盖,可以藏值钱的东西.
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Do you think we can get to the subway if we climb through that manhole?
你想我们可以从那个下水道孔直接掉到地铁站里 吗 ?
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Nautilus, the first U.S. nuclear submarine, was launched at Groton in Connecticut.
美国第一艘核潜艇“鹦鹉螺号”在康狄格州柯罗顿市下水.
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在沿海地区,由于地下水的大量开采而诱发了一系列地质环境负效应.
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过分担忧和强调地下水降落漏斗及其对区域地质环境的影响是不适当的.
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The result indicated that ground water reduces the stability of the and steep open pIt'slope.
计算结果表明,地下水在一定程度上降低了边坡的稳定性,成为边坡失稳的隐患.
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