long life paper,permanent paper是什么意思

用法例句

The endurance testing is used electromagnetic powder brake and inertia wheel to simulate the ramp resistance and the equivalent inertia of clutch which the motorcycle runs on a gradient way an.

分析了摩托车离合器的结合过程,建立了摩托车离合器结合过程的数学模型,并在此基础上研究开发了摩托车离合器起步耐久试验台,详细介绍了试验台的工作原理和技术特点。

Taking three-D exciting endurance test of vertical damper as example,the thought and method for organizing SIM endurance test by simulating damper s working state and environment is proposed.

以垂向油压减振器的三向激振耐久模拟试验为例 ,提出了以模拟减振器工作状态、环境组织耐久试验的思维与方法 ;并从其实施效果出发 ,构思完整意义上的耐久模拟试验 ,以解决技术创新与运行安全之间的矛

Through performance test, magnetism torque test and endurance test, showed that all requirement of performance is attained.

论述了磁力传动离心管道泵的结构特点，给出了设计公式，进行了性能试验、磁扭矩试验和耐久试验，各项指标均达到了设计要求，为石化行业提供了新型的设备。

Progress in studying of the water-reducing agent raising the durability of concrete;

减水剂对混凝土耐久性影响的研究进展

Study on durability of polyurethane adhesive in NaCl solution;

聚氨酯胶粘剂在NaCl水溶液中的耐久性机理研究

Aggregative indicator evaluating the durability of HPC:Chloride ion resistance and present status;

评价高性能混凝土耐久性综合指标——抗氯离子渗透性及其研究现状

Analysis of endurance performance for radial tire with FEM;

滚动轮胎耐久性有限元分析

On the endurance of cement concrete;

浅谈水泥混凝土的耐久性

About the endurance and security of civil structure project;

试论土建结构工程的耐久性与安全性

The study on bond durability of structural plywood for timber structures mainly consists in determination of bond strength and heat durability of plywood.

木结构用胶合板胶合耐久性的研究,主要是对胶合强度和热耐久性的测定。