查询词典 a trace

However, one side effect of this approach is that the trace of an object in the time-distance space is a curve.

不过， 一个副作用的方式，即追踪一个物体在时间空间的距离是一条曲线。

Objective: To establish a spectrophotometric determination method to detect trace elements of mercury in the water.

目的：建立分光光度法测定水体中微量元素汞的含量。

Objective To study a new system for the determination of trace EDTA by inhibition kinetic spectrophotometry.

目的研究阻抑动力学光度法测定痕量EDTA的新体系。

A simple and rapid method for the determination of trace amount of tin in pure lead metal by spiccato flow hydride generation atomic fluorescence spectrometry is described.

在试验基础上，研究高纯铅中微量锡的氢化物-原子荧光光谱简便、快速测定方法。

The historic display mode for seismic records graphs amplitude as a function of time for each geophone group output, giving wiggle trace or squiggle or conventional display.

以前的地震记录图形显示方式是把每一组检波器的输出振幅作为时间的函数，给出波形道或波形曲线或常规显示。

I visit; we write poems (almost always through dictation) and then the students trace, squiggle or have the help of hand-over-hand with a paraprofessional or teacher onto their own paper, making the poem more fully their own.

我走进教室；我们写下一首首诗，随后，学生们随着我们的口述，把诗写在他们自己的纸上，有的是学生自己用花体字写下来的，有的是学生在专职辅助人员、或老师们手把手地握着的情况下写下来的，他们把这首诗完全写成了自己的诗。

In this paper, first of all, the common approaches of demonstrating experiment in general physics are systematically analyzed, including magnification, comparison, transformation, simulation, balance and unbalance, stroboscope, trace-show, projection, etc. In addition, a great number of practical examples exhibit that these approaches can be successfully applied to the physical demonstrating experiments. Then, some specific experimental means are thoroughly investigated from the view of technique, combined with the content of demonstrating experiments in general physics.

本文首先对普通物理演示实验中常用的实验方法如放大法、比较法、转换法、模拟法、平衡法和失衡法、频闪法、示踪法、投影法等做了比较详细、完整的分析，并通过大量实例说明了这些方法在物理演示实验中的应用；然后结合普通物理演示实验内容就一些具体的实验方法从技术实现的角度进行了分析研究。

Solvent sublation is a new kind of technique for separation and pre-concentration. Trace metal ions in water could effectively be pre-concentrated by solvent sublation.

溶剂浮选法是近年来出现的一种新型分离富集方法，它能有效的分离富集水中的痕量金属离子。

Therefore, in order to trace the origin of contribution of the various Co sites to the magnetocrystalline anisotropy of the Co-sublattice, a special attention is paid to the relationship between the evolution of anisotropy of the compounds and the preferred site occupation of non-magnetic atoms over the four available crystallographic sites in the Co sublattice.

因此，本文重点讨论了Co次晶格各向异性演化与非磁性替代原子浓度的关系，以探讨非磁性替代原子在Co次晶格四个不同晶位择优占位对Co次晶格各向异性的影响。

Objective: To set up a resonance light scattering method for determination of trace copper in water sample with the sulfhydryl cotton separation-enrichment method.

目的：结合巯基棉分离富集方法，建立一种测定水中痕量铜的共振光散射新方法。

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。