But chemical agents, lethal viruses and shadowy terrorist networks are not easily contained.

但是化学制剂和致命病毒以及隐蔽的恐怖主义网不是那么容易就能被控制的.

英汉非文学 - 政府文件

They react by adding other chemical agents at the double Bond to form derivatives or polymers.

这些化合物的最大用途在于双键与其它化学物质的反应.

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Several kinds of chemical agents were used as slag grinding aid to study their grinding effects.

尝试用数种化学试剂作为矿渣助磨剂,以评定它们的助磨效果.

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Black , high , strength , reinforce Duroplast . Resistant to solvents, oils greases and other chemical agents.

强化胶木;防水, 防油,防一般化学溶剂.

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In such quantities, these chemical agents could also kill untold thousands.

数量如此之大的化学毒气能把成千上万人置于死地.

英汉非文学 - 政府文件