The VFS keeps track of the currently-supported file systems, as well as those file systems that are currently mounted.
VFS记录当前支持的文件系统以及当前挂装的文件系统。
Some consumer-research companies also employ goggle-mounted cameras to track eye movements so they can be sure what their subjects are looking at.
一些客户研究公司也使用带目镜的摄像头来跟踪眼动，从而确定被试在看什么。
It is driven not by the adhesion force from the contact between wheel and rail, but by the electromagnetic force from reaction plate which is mounted in track.
它不是由轮轨间的粘着力驱动，而是由安装在轨道的反应板产生的电磁推力驱动的。
A slide block is mounted onto the guide track which can move along the guide track.
滑块安装在导轨上，并能沿着导轨滑动。
Two curved screens-one in the steering wheel and one mounted to the steering column-give the driver a nearly 180-degree view of the track around him, thanks to multiple exterior cameras.
方向盘和转向杆上安装的两个曲面屏，给驾驶员提供了180视角，可通过多个外部摄像头来观察周围的路况。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
Travel mechanism of each track consists of a variable two-speed piston motor, a planetary reducer and a parking brake, travel brake buffer valve is mounted on motor to reduce hydraulic shock.
每侧履带的行走机构由一个变量双速柱塞马达、行星减速器和制动器组成，行走制动缓冲阀与马达一体安装，吸收了行车时由于制动或载荷变化带来的液压冲击。
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