关键因素是改变大洋局部的表面温度，通过将底层的冷空气抽到上层或者使用巨大的塑料板，以混合大洋不同深度各层。
The key is to change the ocean's local surface temperature, say, by pumping up deep, cold water or using giant plastic tubes to help mix the ocean layers.
在煤气管道上安装液压翻板阀，通过操作翻板代替人工抽堵盲板作业可以提高工作效率，降低劳动强度和作业危险性。
The special hydraulic valve taking the place of the stopper for gas pipe has improved the efficiency, decreased the intensity and danger in the operation of gas.
介绍了缀板梁结构体系在框架结构抽柱托换以及加层改造中的应用，并分析了该方法的优点以及设计时注意的问题。
The paper presents the application of batten-plate beam structure in removal columns from frame structure and adding stories. It analyses the advantages and the notices in design.
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