1.
making impure or corrupt by adding extraneous materials.
加入其它外来物质使之不纯或腐坏的。
2.
To remove extraneous matter from(the teeth).
剔除从（牙上）剔除外来物质
3.
We have also introduced a new processing machine to separate tiny foreign matters from the roasted coffees.
我们更引进一台设备用以分隔混在咖啡豆内的外来物质。
4.
Avoid damaging effects of foreign matter in the flow by using a strainer ahead of the valve.
为了避免外来物质的破坏作用，要在阀门前面采用一个过滤器。
5.
The city runs select tests to ensure that parasites and other foreign substances aren't transported through our water system.
市里用随机测试来保证寄生虫或其他外来物质 未在自来水管道中传播
6.
To rid of impurities, blemishes, muddiness, or foreign matter.
使完美去除杂质、污渍、污泥或外来事物
7.
Not inherent or essential; derived from something outside.
外来的，外加的非固有的或非本质的；来源于外部事物的
8.
Will the solar matter Genesis is returning cause any concern about extraterrestrial materials?
起源号带回的太阳物质是否会带来地球外的危险物质？
9.
This design reduces the risk of foreign matter entering the manometer.
这个设计减少了外来的物质进入液压计的危险。
10.
not forming an essential part of a thing or arising or originating from the outside.
不是形成某物的本质或固有的部分的，或外来的。
11.
Effect of Water Quality on the Growth of Water Hyacinth (Eichhornia Crassipes (Mart.) Solms.);
水质条件对外来入侵生物水葫芦生长的影响
12.
On the Effects of the Food Additives on Food Safety;
食品中外来化学物质对食品安全性的影响
13.
The Determination of the Contents of Protein in Several Alien Plants Leaves;
几种外来植物叶片中蛋白质含量的测定
14.
We usually use some properties reflected by external characteristics of minerals for mineral identification.
通常是采用矿物外部特征所反映的一些物理性质来鉴定矿物。
15.
This organism also degrades a truly amazing range of xenobiotic compounds (nonbiological foreign chemicals) using both intracellular and extracellular enzymes.
这种细菌也利用胞内和胞外酶降解数量惊人的异生化合物(非生物来源的外来化学物质)。
16.
purported dangerous drug
看来是危险药物的物质
17.
Determination of number of impurities and foreign particles of polyvinyl chloride resins
GB/T9348-1988聚氯乙烯树脂的杂质与外来物粒子数的测定方法
18.
a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine.
一种软质矿物（氟化钙），在紫外线下常发荧光，是氟的主要来源。