He has some foreign matter in his eye.
他眼睛里有异物。
This food contains foreign matter.
这食物含有杂质。
This salt has been purified of foreign matter.
这些盐已经净化除去了杂质。
Milk is put through a clarifier to remove any foreign matter.
牛奶要经过一个澄清器来除去杂质。
They are tightly sealed to prevent any foreign matter from getting inside.
它们被紧紧地密封起来，以防止外界东西进入。
Dust and other foreign matter can get inside a DSLR when you change lenses.
当你更换镜头的时候，灰尘和其他异物有可以会掉进DSLR的里面。
Before installing, flush out pipe lines to remove scale and other foreign matter.
在安装之前，要冲洗管线，清除水垢和其他外来杂质。
Foreign matter on a part of the substrate to be cleaned in a pre-treatment system.
在预处理系统被清洗的工件上的杂质。
In some countries they matter more than foreign investment.
在一些国家这笔钱甚至比外国投资更为重要。
Debt incurred in a foreign currency is another matter.
而如果欠下的债务是以外国货币计价的，就是另一回事了。
They are discussing the matter with the foreign friends.
他们在同外国朋友讨论问题。
No matter which foreign language you are going to learn.
无论你打算学习哪门外语。
Welcome domestic and foreign friends, no matter old or new customers, to visit our company.
热情欢迎国内外朋友、新老客户，莅临本公司洽谈业务。
It's no easy matter to learn a foreign language well.
学好一门外语绝非易事。
Should be used whenever is essential that fluid be free of foreign solid matter.
应使用时至关重要的是，无论是自由流动的外来固体。
Should be used whenever is essential that fluid be free of foreign solid matter.
应使用时至关重要的是，无论是自由流动的外来固体。
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