Once a biological control agent is released, it is difficult to control its speed.
一旦实施了生物控制手段，它的速度就很难控制。
Reconnaissance nuclear and biological agent testing uh ground attack.
侦查，核武或生化测试，呃，地面攻击。
To learn the toxicity and safety of the biological crop protective agent.
目的了解生物农药庄稼保护剂的毒性和安全性。
The heat-carrying agent transportation is the key link in the biological fuel oil production process.
热载体输送是生物燃油生产过程中的关键环节，输送过程中温度与输送量直接影响生物燃油的生产。
The heat-carrying agent transportation is the key link in the biological fuel oil production process.
热载体输送是生物燃油生产过程中的关键环节，输送过程中温度与输送量直接影响生物燃油的生产。
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