长寿命

The paper introduces that under special technology condition, Nona material infiltrates through matrixes of machinery parts to refine crystal grains, increase matrix tenacity , strength and hardness, reduce friction factors and high performance and long lifetime machinery parts are manufactured.

本文介绍在特定的工艺条件下，将纳米材料渗入到机械零件的基体中，使基体材料晶粒细化，韧性增加，强度增加，硬度增加，磨擦因数降低，从而制造出了高性能长寿命的机械零件。

ABSTRACT Metal hydride-nickle rechargeable batteries have attacted increaing attention in recent years because of their several inherent advantages such as hight energy and power density、high-rate dischargeability、high tolerance to overcharge/overdischarge and enviromental acceptance .

MH-Ni电池具有高的比能量、无镉污染、长寿命和良好的耐过充放电能力等优点，许多国家都在致力于这方面的研究工作。

Ideal for applications where PCB mounting, high reliability and long life are important.

理想的应用电路板安装，高可靠性和长寿命是很重要的。

The problems began in the late fourteenth century, with the death of the long-lived King Edward III, of the house of Plantagenet.

问题开始于14世纪后期，随着死亡的长寿命的英国国王爱德华三世的众议院普朗塔。

In comparison with predecessor, PRAM will have higher speed, higher writing density , longerlife and lower prime cost.

相比前任，在pram将有较高的速度，较高的写作密度，长寿命和降低成本的优惠。

Among of them, Radio-frequency ion source is in most wide used for the reasons of its high proton content, long life and reliable performance, etc.

其中，高频离子源以其很高的质子比（70％-90％）、长寿命和可靠的性能而得到了最广泛的应用。

Activation analysis and non-radiometric method have been used to measure long-lived fission product nuclides. Their sensitivity is superior to that of traditional radiochemical analysis.

活化分析以及非放射的仪器分析方法被用来测量长寿命裂变产物核素，其分析灵敏度优于传统的放化分析法。

You benefit by redwood's long life.

你受益，红木的长寿命。

Based on the analysis,four kinds of test road structure wereproposed for the Shan-Meng highway.

分析了长寿命路面结构的概念和含义，以及设计指标的合理选取。

Therefore,SIBR integrates virtues of all kinds of rubbers and it can make up for their shortcomings.

集成了各种橡胶的优点而弥补了各种橡胶的不足，同时满足了轮胎胎面对全天候、长寿命和经济性的要求。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐