1.
STUDY OF PRINCIPLE AND CONNECTION SCHEME OF THREE PHASE TO FOUR PHASE TRANSFORMER
三相变四相电力变压器的接线方案与原理研究
2.
Fourth in a group of four identical things.
第四（份）的一组四件相同的物体中的第四件的
3.
dipole-quadrupole interaction
偶极－四极相互作用
4.
A gallon contains four quarts.
一加仑相当于四夸脱。
5.
in quadrature with
与...相差四分之一周期
6.
four-barrel step and repeat camera
四镜头分步重复照相机
7.
defect tetrahedral phase
有缺陷的四面体晶相
8.
gas chromatograph-quadpole mass spectrometer
气相色谱四极质谱仪
9.
Greek cross
四臂长度相等的十字架
10.
three-phase four-wire watt-hour meter
三相四线有功电度表
11.
To divide into four equal or equivalent parts.
分成四等分将…分成四个相同或相当部分
12.
Being one of four equal or equivalent parts.
四分之一的四个相等或相当部分之一的
13.
(biology) having or consisting of four similar parts; tetramerous flowers.
（生物学）拥有四个相同的部分或者由四个相同的部分组成；四数花。
14.
a quadrilateral whose opposite sides are both parallel and equal in length.
相对的边平行且长度相等的四边形。
15.
Design of Three-phase Four-wire Phase Separation Meter Based on PIC16F946
基于PIC16F946三相四线制分相计量表设计
16.
Unitary Congruence and Unitary Similarity for Quaternion Matrix
四元数矩阵的酉相合与酉相似(英文)
17.
a time signature indicating four beats to the bar.
每小节有四个四分音符或与其相当的音乐时值。
18.
One of a group of four identical things.
一式四份中的一份四件相同的物件中的一个