1) Siguan
四关
1.
Objective To evaluate the effcacy of needling “Siguan” (a group of points) plus point Xuehai for treatment of facial spasm.
目的 观察针刺“四关”加血海穴治疗面肌痉挛的效果。
3) four-pole switch
四极开关
1.
The paper mainly gives the work condition of neutral current,introduces application of four-pole switch in different grounding systems and problems to be noticed.
文章主要阐述了中性线的工况和各种不同接地系统中四极开关的应用及应用中需要注意的问题。
2.
The article describes the conditions in selection of four-pole switch,applicable site and points out the cautions in actual projects.
论述了四极开关选择的条件,应用场所,指出了在实际工程中应注意的问题。
3.
The application scope and gist of three-pole and four-pole switch are emphasized with an engineering example.
文中阐述了ATSE的概念、分类、性能特点以及为交换局双电源系统选择ATSE时应考虑的因素,重点分析了三极开关和四极开关的适用范围和选择依据,并通过工程实例予以说明。
4) four-switch
四开关
1.
Comparability of the three-phase four-switch inverter with two-phase induction motor driver is discussed in the paper by the method of magnetic-flux controlling.
本文利用磁链轨迹控制方法分析了四开关三相逆变桥与两相电机驱动器的相似性。
5) four switch
四开关
1.
This paper studies on the circuit of the four switch three phase inverter.
主要研究四开关的三相逆变器电路,该电路由两组开关桥臂和一组电容桥臂组成。
6) Four wheels correlated
四轮相关
补充资料：四关
1.四座关塞。秦汉时"四关"，指函谷关﹑武关﹑散关和萧关。 2.四座关塞。晋时"四关"，则指东成皋，南伊阙，北孟津，西函谷。 3.指长安。 4.指耳﹑目﹑心﹑口。 5.中医学名词。指肩﹑肘﹑髋﹑膝四关节或两肘和两膝的关节。
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