英语语法分析

The life expectancy is several times to common zincification bolt;

寿命是一般镀锌螺钉的数倍；

Heat zincification step: to install clad layer on the surface of zonal steel.

热镀锌步骤：用于在带钢表面上镀层。

The potassium chloride zincification technics was introduced, and its proportioning and condition for primary working procedure, and check and measure for primary ingredient.

本文介绍氯化钾镀锌工艺过程、主要工序的配方及工艺条件、镀液主要成分的分析方法。