1) emitter working head
灌水器工作水头
1.
Based on the hydraulic characteristics and the basic principles of hydraulics,the relationship between irrigation uniformity Cu and emitter working head hd in drip irrigation laterals of low pressure under different fluent regime conditions is analyzed,and relevant experiments have verified theoretical results.
依据滴灌灌水器的水力特性,基于水力学基本原理,分析研究了水平铺设的低压滴灌毛管在不同流态条件下灌水均匀度Cu与灌水器工作水头hd的关系,并通过实验验证了理论分析的结论;结果表明:在试验条件下滴灌毛管内不同水流流态、灌水器流态指数x时,Cu与hd的变化关系不尽相同,层流时不论x为何值,Cu随hd的增大而增大。
2) operating head
工作水头
1.
The operating head signal is automatically given to the governor based on microcomputer and the automatiC optimizing earn relationship of propeller blades and wiCket gates of an axial-flow turbine with adjustable blades is realized.
基于可编程序控制器的机组Ｑ、Ｗ、Ｈ、η监测系统，为水轮发电机组在线监测提供了新的手段，并将机组工作水头信号自动送微机调速器，实现了轴流转桨式水轮机桨叶和导叶的自动最优协联。
2.
The ralation of the emitter s operating head of microirrigation with the ap-plication uniformity is not",the higher the emitter s operating head,the higher the applica-tion unifority .
微灌系统灌水器的工作水头与灌水均匀度的关系并非是“灌水器的工作水头越高，则微灌系统的灌水均匀度越高”，而是与所选灌水器的流态指数及管道的流量指数有关。
3) irrigating head
灌溉水头
4) operating head of a filter
滤池工作水头
5) working pressure head
工作压力水头
6) manual priming
人工灌水
补充资料：梳水头
见假发。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条