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。

We had to work off the impurities.

我们得把杂质去掉.

It is free from air, moisture or impurities.

它不含空气, 水份和杂物.

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。

There were impurities in the water.

水面上飘着浮渣。

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.

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。

Filtering the water removed some of its impurities.

把水过滤一下除去了一些杂质.

The buildup of impurities often results in defective plating.

杂质的积累经常导致不良的电镀.

Impurities tend to segregate at grain boundaries.

杂质常常在晶粒间界偏析.

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.

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.

This food is contaminated with impurities.

这食物已被不洁物质所污染.

A filter will remove most impurities found in water.

过滤器会滤掉水中的大部分杂质。

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.

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。

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

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。

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；

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。