1)  available NPSH
有效汽蚀余量
2)  NPSH_A
有效汽蚀余量NPSH_A
3)  valid
有效
1.
How do make school administrations valid-take Wei Shusheng for example;
学校管理者如何成为有效管理者——以魏书生为例
2.
It is valid and practical in evaluating the dispersing power of different sequestering/dispersing agents.
该法能排除螯合作用的影响,对不同螯合分散剂分散力的评价是有效的、可行
3.
The trend of the contract validity system evolution in our country is that the principle of autonomy of will increasingly comes into actual effect,that the principle of public order and good moral is carried out more and more reasonably,that the principle of trade encouragement has the effect gradually and that the range of invalidity is reducing and the validity is more diverse.
我国合同效力制度演变的趋势是,意思自治原则越来越发挥出实际效能,公序良俗原则越来越定位合理,鼓励交易原则越来越落到实处,无效的范围逐渐缩小,效力形式越来越多样化,富有弹性,有效、无效、可撤销、效力待定、未生效并存的模式渐趋完善。
4)  Effectiveness
有效
1.
Effectiveness of community health care could be analyzed through a logic as structure,process and outcome.
从个体角度看,可及性和有效性是两个最关键的质量维度,其中有效性包括技术服务和人际服务两方面,并应该从服务的结构、过程和结果3个方面来分析;从群体的层面看,社区卫生服务质量应该加上公平性和效率的维度。
2.
On the basis of the establishment of the three standards combined management system in our institute this article forcus on the effectiveness and innovation of the mechanism of the three standards combined management system,and may have some reference to the institute who is going to applying this system.
本文结合我院三标综合管理体系的建立,重点对体系的创新、有效方面进行阐述,对将要推行三标综合管理体系的单位有参考作用。
5)  effective
有效
1.
Detection of radiorenogram and effective renal plasma flow in post-operation of kidney transplantation;
放射性肾图及肾有效血浆流量对移植肾功能监测的临床价值
2.
Effective History Teaching Summons Humanity Concern;
有效的历史教学呼唤人文关怀
3.
Coparasion on the Effective and Legal Functions of Advertisement;
试析比较广告的合法、有效运用
6)  efficiency
有效
1.
The Establishment of Cross-Efficiency Mode of the Internal Capital Market in China;
我国内部资本市场交叉有效模式的提出
2.
The efficiency in DEA model is discussed and the scale,purely technical efficiency andcongestion are decomposed.
本文对ＤＥＡ模型中的有效性问题进行了讨论，把总体有效分解为规模有效、饱和性和纯技术有效三部分，并分析了各种有效性的经济含义。
3.
For the theorem 4 on DEA efficiency(C~2R) in reference ,this paper gives its inverse theorem under a condition in order to be easy to discriminate DEA efficiency(C~2R).
对文[1]中有关DEA有效(C2R)的定理4,本文给出了在某种条件下的逆定理,以便简化DEA有效性(C2R)的判断。
参考词条
补充资料：汽蚀余量
分子式：
CAS号：

性质：离心泵的叶轮低压区单位重量液体所具有的超过该温度下饱和蒸气压的富裕能量（压头），以m为单位。为避免发生汽蚀现象，对于给定的泵，在给定转速和流量下，应有一个必须的汽蚀余量，称必须汽蚀作量，其值由半径验公式给出。

说明：补充资料仅用于学习参考，请勿用于其它任何用途。