查询词典 three-wire system

In this work, three certified milk powder materials with different PCDD/Fs levels were Soxhlet-extracted and then cleaned up using Power-Prep system automatically. PCDD/Fs and planar PCBs were determined using isotope dilution and high resolution gas chromatography-high resolution mass spectrometry.

自动样品前处理在乳品中二恶英和共平面多氯联苯同时测定中的应用张磊，李敬光，吴永宁，赵云峰(中国疾病预防控制中心营养与食品安全所，北京 100050)摘要：采用索氏提取及自动净化处理系统对乳品进行提取和净化，在高分辨气相色谱-高分辨双聚焦质谱仪上进行定性和定量检测。

This system divides into three work processes: The automatic movement, the manual movement and the stop movement, the available change-over switch controls.

该系统分为三个工作过程：自动运行、手动运行和停止运行，可用转换开关来控制。

This system divides into three work processes: Theautomatic movement, the manual movement and the stop movement, theavailable change-over switch controls.

该系统分为三个工作过程：自动运行、手动运行和停止运行，可用转换开关来控制。

In this paper,the design methods of time difference receiver of passive detection and tracking radar system,based on passive position finding of three station time difference,are presented in detail,and channelization receiver technique and mixer threshold detection method are adopted.

较详细介绍了一种基于三站时差定位体制的无源探测与跟踪雷达系统时差接收机的设计，该方案采用了信道化接收技术和混合门限信号检测方

Depending on the damping ratio , the roots of the system characteristic equation have three possibilities

根据阻尼比的值，系统特征方程的根有三种可能

Chapter Three is how to found a chastisement system of juvenile delinquency reasonable in our country.

第二章是"我国未成年人犯罪制裁体系的立法现状及缺陷"。

It describes the characteristics of motion to the dynamic system of excavators. The strange attractor gets directly describe and has three importance characters, i. e. chattiness, boundedness and arrangement.

并且从几何上描述了挖掘机动力系统的运动规律，对系统的奇怪吸引子进行了直观刻画，发现其具有三个重要特点：即混乱性、有界性和层次性。

By having three branches we can maintain a system of checks and balances.

通过有三个分支，我们可以维护一个检查和平衡的系统。

All three candidates agree that Chilean society has changed faster than the state and the political system.

三位候选人皆同意，智利社会的转变速度要比国家和政治体制快得多。

Special solutions for the ring circular domain with crack surfaces acted on uniform compressive force, linear compressive force and linear shearing force are deduced in polar coordinate employed the eigenfunction expansion technique in the Hamiltonian system of elastic mechanics. Combined with the general solution for the above problems, the analytical solutions for crack tip fields with surfaces acted on the above three kinds of loads are obtained. These solutions offer theoretical basis to construct analytical elements for plastic analysis of crack.

从弹性力学哈密顿体系理论出发，利用平面弹性力学极坐标系下的本征向量展开求解，推导了环形圆形域裂纹边作用有均布压力、线性压力和均布剪切力情况下的特解，从而得到了裂纹表面作用有以上三种荷载情况下的裂纹尖端场的解析解，为进一步构造进行弹塑性裂纹分析的奇异解析元奠定了理论基础。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。