Contains biocide to extend fluid life.
含有杀菌剂以延长切削液使用寿命。
From there they can disperse along a fluid network of roads, trains, subways, canals and parks whose tentacles extend out through the region.
从这他们由发达的道路网奔向四面八方，火车，地铁，道路，停车场，道路网的触角遍及这个地区。
Extend structural equation, supposing celestial body is charged ideal fluid. Give three methods to discuss structure of charged celestial body.
假设星体为荷电理想流体，将星体的结构方程推广到荷电情形，并给出了讨论荷电星体结构的三种基本方法。
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