The experimental result also shows that the nitrogen element on the surface of contact black surface may be mainly in forms of amino group and nitro group.

此外，实验分析了接触法炭黑表面氮元素的组成，结果表明主要是以氨基和硝基的形式存在。

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We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.

我们想知道食物与被污染的表面接触的时间长短是否会影响细菌转移到食物上的速度。

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An air burst is an explosion in which a weapon is detonated in air at an altitude below 30 km but at sufficient height that the fireball does not contact the surface of the earth.

空中爆炸指的是核爆发生在海拔30公里以下，且火球有足够高度不接触到地面。

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When the antibodies on the surface of the nanotubes come in contact with a target protein, the proteins bind to the tubes and spread them apart a tiny bit.

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When these charged droplets come into contact with the surface of the print they collect any substances deposited on it, creating a thin liquid film.

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This film is form-fitted onto an audio device and creates wide area surface contact with the skin, or the inside of the ear canal.

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