Often the rudder is controlled in flight by one or more automatic yaw dampers, robot devices which, together with many others, handle corrections on modern airliners.
通常在飞行中方向舵都是有一个或多个自动偏航阻尼器控制的，在现代飞机上，自动装置和其他的装置一起处理偏航修正。
In automatic control devices, electronic elements with a multiplying-dividing function are often required.
在自动控制仪表中，常常需要使用具有乘除法运算功能的元件。
Automatic doors are often used in large hotels, administrative departments and other fields, with good decoration, for our life has brought great convenience.
自动门常用于大型酒店、行政部门等领域，具有良好的装饰性，为我们的生活带来了很大的方便。
In modernized high-seed automatic machine, often used the intermittence and graduation transmission mechanism with worm-cam and roller-gear.
在现代高速自动机中 ，经常使用蜗杆凸轮—滚子齿轮间歇分度传动机构。
In modernized high-seed automatic machine, often used the intermittence and graduation transmission mechanism with worm-cam and roller-gear.
在现代高速自动机中 ，经常使用蜗杆凸轮—滚子齿轮间歇分度传动机构。
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