The article uses headspace gas chromatography to measure halogenated hydrocarbon in the sample water.

Acid-volatile sulfide in river sediment sample was measured by reaction headspace.

采用顶空色谱测定了河流底泥中的可酸挥发硫化物.

The citronella oil content of certain candle formulations was determined by headspace gas chromatography-mass spectrometry.

本文采用顶空进样气相色谱 - 质谱联用法测定蜡烛中香茅油的含量.

Objective : To develop headspace gas chromatography for the determination of residual solvent in chitosan ester.

目的: 建立顶空气相色谱法分析几丁糖酯中溶剂残留.

Contradiction is headspring of all movements. Movements are all Contradictions'fountainheads.

矛盾是一切运动的动力, 运动是一切矛盾的源泉.

The life world is the foundation of reality and headspring of significance for the education world.

摘要生活世界是教育世界的现实基础和意义之源.

It is an approach to life and is the headspring of consciousness, emotion and music.

水是生活的通道,是意念 、 情感和音乐的源泉.

The first thing we shall do for our own career is making its headspring clear.

我们首先要为我们自己的事业所作的就是弄清楚护理的源头是什么.

The headstand: It's one of the most challenging and beneficial asanas.

“头手倒立”是练习瑜伽时最具挑战性和最有益处的一个姿势.

We try to close the gap created by their headstart in that market.

我们试图缩小由于他们在那个市场上的领先所造成的差距.

HIGHLY recommended program for those who have decided TO a HEADSTART in FOREX Trading.

向所有想在外汇交易中领先的人高度的推荐这个课程.

And he expanded Head Start programs to help prepare poor children to begin school.

他还扩大了领先(HeadStart)项目,来帮助贫困的儿童接受教育.

Clutch in headstock makes the lathe start smoothly and brake quickly.

在车头离合器使车床顺利启动和制动迅速.

The spindle is driven through the gearbox, which is housed within the headstock.

主轴是通过位于床头座的变速箱来驱动的.

Radial Arm is the part on which the headstock is mounted.

旋臂是主轴承安装的一部分.

The horizontal bed is the foundation member which supports the headstock , tailstock, and carriage.

卧式床身是基础构件,用来支承床头箱 、 尾座和拖板.

Headstock gears ground with low noise.

主轴箱齿轮精密磨削,噪音低.

Many problems are existed in quality control of headstock gear.

水利工程启闭机是水利工程的重要设备.

It can control degree of the headstock of valve directly through travel indicator.

可以通过行程指示表来直观控制阀门开启程度.

Cock and ball 2.3.3 : headstock were plunger or ball, rotating around its own axis.

旋塞和球形: 启闭件是柱塞或球体, 围绕本身的轴线旋转.

The cutting width is realized by the hydraulic control headstock's position, the operation is simple.

切割宽度用液压调整主轴箱的位置来实现, 操作简便轻松.