查询词典 a trace

Selenium is the bodys immune system fortifier, also be a kind of very good cancer, cancer of the trace element.

硒是人体免疫系统的强化剂，也是一种很好的防癌、抗癌的微量元素。

This legislation becomes applicable on 1 May 2009 meaning there are only a few weeks left to source products with no trace of Dimethyl Fumarate in them and to carry out an inventory check.

这项法律成为适用于2009年5月1日的意义，只有几个星期左源产品的任何踪迹富马酸二甲酯在他们进行盘存检查。

The paper tries to study the theory of corporate registration, to analyze its nature, to discuss its value and its validity, to trace its historical development and to form a fundamental cognition of corporate registration.

本文尝试着从研究公司登记的理论入手，辨析公司登记的性质，探讨公司登记的价值取向和登记的效力，考察了国内外公司登记的历史发展，对公司登记形成了基本的认识。

BACKGROUND: Gallium is a non-essential trace element in the human body.

摘要背景：镓是一种人体内非必需微量元素。

In the Geochemistry surveying work, the measurement of trace silver in soil is a very important part.

在地球化学样品调查工作中，土壤中痕量银的测试是整个测试工作的重要组成部分。

Combined with related rare earth element and trace element geochemistry of Huangshaping granites and ore-bearing skarn, it is concluded in this paper that the age of 154 Ma should represent the metallogenic epoch of the deposit, and that there existed a close relationship between the ore-forming process of the deposit and the granite porphyry, which were both formed during the peak stage of Early Yanshanian large-scale rock-forming and ore-forming activities in South China.

结合黄沙坪岩体及含矿硅卡岩型矿体的稀土及微量元素地球化学特征，得出以下认识：该矿床的成矿年龄在154Ma左右；成矿作用与花岗斑岩关系密切，它们都是华南燕山早期大规模成岩成矿作用高峰期的产物。

How I ever left a hairlike trace?

我何曾留着像游丝样的痕迹呢？

Have I ever kept any trace like a hairspring?

我何曾留着像游丝样的痕迹呢？

Tip: To determine your true shape, pull your hair off your forehead with one hand, look into a mirror and trace the outline of your face on the glass with lipstick.

小贴士：确定自己的真实脸型，可以单手把遮住前额的发丝拢开，然后一边。。。

A modified Hedley P fractionation method was used to trace the dynamics of soil P pools.

采用修正的Hedley法对水稻长期定位肥料试验土壤各形态磷进行了研究。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。