原理

The professor used a graph to explain the principles of economics.

教授用图表解释经济原理。

The principle of acceleration relativization and the principle of force relativization were deduced.

推导出了加速度相对性原理和力相对性原理。

They work on a principle of heat absorption.

他们研究吸热的原理。

A graduate student instructed the freshmen in the rudiments of music theory.

一名研究生向新生教授音乐理论的基本原理。

We owe to Newton the principle of gravitation.

万有引力原理的发现应归功于牛顿。

Slit lmp microscope is an ophthalmologic opticalinstrument used to check preocular optical magnification .

裂隙灯显微镜是借助光原理，检查眼前部和眼内部的眼科光仪器。

These machines work on the same principle.

这些机器按同样的原理运转。

These machines both work on the same principle.

这两台机器的作原理是一样的。

This treatise introduces the physicochemical property,reaction mechanisim,synthesis method and the yield of benzyl pyridin benzimidazolone.

对苄基吡啶基苯并咪唑酮的物化性质、反应原理、合成方法及收率作了述。

Principle and operation technology of removing silicon,phosphorous and arsenic from sodium wolframate is presented.

阐述了钨酸钠溶液中除硅、磷、砷的原理,并提出了具体的操作艺。

The synthetic principle and the process method of diglycol dioleate were discussed in this paper.

本文探讨了一缩二乙醇油酸双酯酯化反应的合成原理及其艺操作方法。

The error of“Principle of Superposition”is corrected,whereas a new photovoltage theory is established in this paper.

本文纠正了“迭加原理”的错误,建立了新的光伏理论。

We may determine the height of a mountain by trigonometry.

我们可用三角原理测定山的高度。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴酸东莨菪碱的鉴别原理是什么？

The reaction principal, reaction procedure and flowsheeting in the potassium sulfate method are included.

给出了甲酸钠法的反应原理、反应过程以及艺流程。对原料消耗、产品规格及质量测定作了简单介绍。

B.Lax and K.J.Button, Microwave Ferrites and Ferrimagnetics,McGraw-Hill,New York,1962.

《微波铁氧体线性器件原理》，科出版社，北京，1979。

It is possible, of course, that the converse of this theory may also be true.

当然该原理的逆命题也有可能成立。

The elements of physics are difficult to grasp.

物理原理是很难掌握的。

The heterodyning principle is well known in nonlinear optics as difference frequency generation (DFG).

在非线性光领域,超外差原理就是著名的差频产生(DFG)技术。

The principle and equipment of sorbitizing isothermal heat treatment without lead are introduced.

指出钢丝铅浴索氏体化热处理存在的问题,介绍无铅索氏体化等温热处理的原理和设备。