通过按住一个快捷键，玩家可以在屏幕上激活一个符号螺旋。
By pressing and holding a hot-key, a spiral of symbols is invoked on the screen.
脱氧核糖核苷酸以共价键连接起来的链。双螺旋由两条DNA链组成。
A covalently linked chain of deoxribonu- cleotides. The double helix is composed of two DNA strands.
文章详细介绍了无键螺旋桨安装的基本原理，全面分析了无键螺旋桨安装工艺的具体操作方式。
This paper presents the principle of keyless propeller fitting, and provideds in detail the technique of keyless propeller fitting operation.
螺旋桨通过使用船厂提供的液压顶升装置压入螺旋桨轴并采用湿式无键固定法紧固。
The propeller is to be force fitted to the propeller shaft by using the hydraulic jack which the Builder possess and secured by wet type keyless fitting method.
螺旋桨通过使用船厂提供的液压顶升装置压入螺旋桨轴并采用湿式无键固定法紧固。
The propeller is to be force fitted to the propeller shaft by using the hydraulic jack which the Builder possess and secured by wet type keyless fitting method.
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