介绍了管外夹装式超声波流量计的基本原理、类型及其最新进展；
Principles, types and latest development jacketed ultrasonic flowmeter are also introduced.
本实用新型涉及一种除草机快速夹装组件，属于除草机组件技术 领域。
The utility model relates to a quickly clamping subassembly of a weeding machine, which belongs to the technical filed of a weeding machine subassembly.
本实用新型能够方便、快捷地装夹垂直轴汽油机，有调节方便，夹装时间短，劳动强度小，定位准确的优点。
The clamping device can conveniently and fast clamp the vertical shaft gasoline engine, and has the advantages of convenient adjusting, short clamping time, low labor intensity and accurate location.
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