先零

对于接地故障，先利用零、负序电流相位关系判断故障发生在A，B还是C区，每个区域对应一种单相接地故障和一种两相短路接地故障；

When a grounding fault occurs , A , B or C region is judged by the phase angle between the zero sequence and negative sequence components of the current . Each region contains a kind of single phase to ground fault and phase to phase with ground fault ;

去乘尾数是零的数字时，先将零移下。

When multiplying numbers ending in nought , bring down the noughts first .

我们先讨论零阶反应。

So let 's talk about zero order reactions .

安培小时计的指针先从零转到2，然后又回到零。

The pointer of the ampere-hour meter moves from zero to two and goes back to zero again .

本文先给出幂零矩阵的定义，然后讨论了它的若干性质。

This paper first presents the definition of nilpotent matrix and then moves on to discuss certain properties of them .

传统的图像插值方法，包括零阶插值或最近邻插值、双线性插值、立方样条插值等，是先经补零疏化、后经内插滤波实现的。

Conventional interpolation algorithms of image , such as zero-order or nearest neighbor , bilinear , cubic spline interpolation , can be analyzed in two steps : ( I ) upsampling by zero filling , and ( ii ) low-pass filtering .

我先将它们调零。

I will zero them .