impurities的例句大全

Oil is refined to remove naturally occurring impurities.

油经过提炼去除天然存在的杂质。

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We had to work off the impurities.

我们得把杂质去掉.

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It is free from air, moisture or impurities.

它不含空气, 水份和杂物.

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Once its impurities had settled, the oil could be graded.

一旦杂质沉淀下去，油就可以分级了。

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There were impurities in the water.

水面上飘着浮渣。

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The impurities present have an important effect on the rate of setting.

存在的杂质对凝固速率有很大的影响.

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The air in the factory is filtered to remove impurities.

工厂里的空气要经过过滤，以清除其中的杂质。

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Filtering the water removed some of its impurities.

把水过滤一下除去了一些杂质.

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The buildup of impurities often results in defective plating.

杂质的积累经常导致不良的电镀.

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Impurities tend to segregate at grain boundaries.

杂质常常在晶粒间界偏析.

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Semiconductors containing such impurities are called p-type semiconductors.

含有这类杂质的半导体叫做P型半导体.

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The residual impurities can effect wet-process production in several ways.

这些残留的杂质可能在几个方面影响湿法生产.

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This food is contaminated with impurities.

这食物已被不洁物质所污染.

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A filter will remove most impurities found in water.

过滤器会滤掉水中的大部分杂质。

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Calcitic limestone is mainly CaCo 3 with relatively small amounts of impurities.

方解石灰岩,主要是由CaCo3和少量的杂质所形成.

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About 70 per cent of corn imported by China Grain Reserves Corp contained impurities exceeding the 3 per cent limit.

中国储备粮管理总公司（China Grain Reserves Corp）进口的玉米中，大约70%玉米的杂质含量超过3%的上限。

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Gas Chromatographic Analysis of Butylated Hydroxytoluene and Its Impurities

合成2,6-叔丁基对甲酚的气相色谱分析

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Trace quantities of impurities can impart a musty or pungent odor to the gas.

痕量的杂质会使气体带有一种霉味或刺激性气味。

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Tersely illustrates the forming mechanism of gas cutting and gas coning with their reasonable gas flooding technology, measures of preventing impurities in water and CO 2 causing the damage of reservoir;

简要介绍了气侵、气锥形成机理和合理的注气工艺及预防注入水和CO2气体中杂质带来的油层伤害措施；

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The base and emitter transit time increase and the cutoff frequency decreases at low temperature due to the trapping effect of shallow energy level impurities.

而由于浅能级杂质的陷阱效应，低温下基区和发射区渡越时间变长，截止频率下降。

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