| 释义 |
- 额定扬程，额定水头：指在给定的流量条件下，泵或水泵的额定扬程或额定水头。
1 ?额定水头 ... rated condition 额定状态,额定工况,... rated head 额定水头,额定扬程... rated input 额定输入量,额定需求... 2 ?额定压头 ... Rated flow 额定流量 Rated head 额定压头 Typical head-flowrate 典型的压头-流量 ... 3 ?额定发热量 ... 项目/ltem 额定发热量/Rated head 开水量/Boiled water ... 4 ?额定扬程 额定扬程（rated head）:～360m
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Though the range of water head is not too wide, maximum efficiency of Goupitan hydroelectric plant is very high and weighted efficiency focus on rated head wide range in flow. 尽管构皮滩电站的水头变幅并不大，但最高效率要求较高，而且设计水头附近横向权值大。 - 2
Before, the Grand Cherokee had only head-curtain airbags, which the Institute rated as only marginal protection in side crashes. 在这之前，大切诺基只有头部悬挂式的气囊。在侧面碰撞中机构只把他分类到边际保护中。 - 3
Submersible pump any of the provisions of the nameplate on the flow and head submersible pump is rated for use condition, the general is also more efficient use of the best point. 任何一台潜水电泵的铭牌上所规定的流量和扬程是这台潜水电泵使用的额定工况，一般也是使用效率较高的最佳点。
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