查询词典 modification

The new method is given to design the optimum profile modification curve design The effects of optimum profile gear in improving the dynamic performance of gear transmission are verified in the Gear Dynamic Performance Test Rig In this dissertation, the main study contents and creative results are shown as following: The influences on the gear transmission system caused by the gear's accumulated error (periodic error and harmonic error) are theoretically studied. A new method is developed to simulate the gear's harmonic error by using the 2-order MARKOV process A simulated model of the dynamic performance which is excited by the gear's accumulated error is obtained.

本文在前人大量研究的基础上，结合作者承担的国家自然科学基金项目"齿轮传动动态系统辨识与三维修形研究"和山东省自然科学基金项目"齿轮传动动态性能仿真及结构参数、齿形的优化修形"，采用理论和试验相结合的新思路，系统地研究了齿轮传动的动态性能，建立了能正确描述齿轮传动系统动态性能的仿真模型和系统辨识模型，给出了确定齿轮传动轮齿修形曲线的优化设计方法，利用自行研制的齿轮传动动态性能试验装置，验证了优化修形齿轮对提高齿轮传动动态性能的突出作用。

As a Peugeot 206 models in the overseas successor, 207 of the greater potential for modification.

作为标致206车型在海外的接任者，207的改装潜力更大。

The addition of small amounts of phenazine (0.005-5.0%) induced a great change of color, morphology and properties of MC nylon. The modification effect was considered to result from the bydrogen bond between nylon-6 and phenazine. The effect of the di-model compund of PPQ on MC nylon is between that of he mono-model compound and phenazine.

少量(0.005—5.0％)吩嗪的引入使MC尼龙的颜色、形态及性能等发生巨大变化，改性体系被认为是氢键相互作用，PPQ双模型化合物的改性作用介于二者之间。

The paper reviews the characteristics of phenol compounds and the progress on modification of these compounds in recently years.

综述了天然酚酸类化合物的性质及近年来对其改性的新进展。

It also recommends some suggestions on modification of these phenol compounds in the future.

提出了今后采用生物方法对天然酚酸类化合物进行改性的一些建议。

To research the effect of structure modification of phenothiazine dyes,and to find a photosensitizer that can be used for virus inactivation in red blood cells.

目的 筛选用于红细胞病毒灭活的光敏剂，并研究酚噻嗪类光敏剂的构效关系。

We introduce a modification of reflectron time-of-flight mass spectrometer for laser photodissociation of mass-selected ions.

我们介绍了一种改进的反射式飞行时间质谱装置用于光解质量选择的团簇离子。

To enhance their photoelectric conversion efficiency, the SnO_2 powders' surface was modified by zinc acetic. The results shows that surface modification significantly improve the cell's photoelectric conversion efficiency.

为了提高其光电转化效率，用乙酸锌在SnO_2表面进行了修饰，大大改善了电池的输出性能。

Its high photooxidation activity might be the combination effect of the microstructure and the surface modification.

氨吸附量热研究表明空气热脱水得到的氧化钛晶须具有很高的酸容量。

Hollow microbeads with well physiochemical properties and high attached value will become more widely used after surface modification.

空心微珠具有良好的理化性能和高附加值，经表面改性后应用更加广泛。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。