查询词典 pressureless

SiC/Al composites were prepared with pressureless infiltration method. Using pin on disk tribometer, the influence of volume fraction and particle size of SiC on dry friction and wear properties of the SiC/Al composites were investigated. The wear mechanism of the composites was studied with the analysis of the worn surface by SEM.

采用无压浸渗法制备不同碳化硅粒度和体积分数的SiC/Al复合材料，利用销－盘摩擦磨损试验机考察了碳化硅的粒度和体积分数等对SiC/Al复合材料干摩擦磨损性能的影响，采用扫描电子显微镜观察磨损表面形貌并分析其磨损机理。

Shell Cassida Fluid HT 32 is a synthetic heat-transfer fluid for close d circuit and pressureless heat transfer systems.

壳牌加适达HT 32润滑油是一种用于闭路循环和无压热传导系统的合成热传导润滑油。

Shell Cassida Fluid HT 32 is a synthetic heat-transfer fluid for closed circuit and pressureless heat transfer systems.

壳牌加适达HT 32润滑油是一种用于闭路循环和无压热传导系统的合成热传导润滑油。

Five synthesis methods of AlN powder were discussed, namely direct nitrogenation of Al powder, carbothermal reduction of Al2O3, chemical vapor deposition, sol-gel method, self-propagating high-temperature synthesis and plasma chemical synthesis. The choice of AlN sintering additives and five sintering technologies were analysed, namely hot pressing sintering, pressureless sintering, spark plasma sintering, microwave sintering and self-propagating sintering. The preparation processes of AlN substrate and its influencing factors were expounded.

介绍AlN陶瓷的典型性能和导热机理；讨论AlN粉末的5种合成方法：铝粉直接氮化法、Al2O3碳热还原法、化学气相沉积法、溶胶凝胶法、自蔓延高温合成法和等离子化学合成法；分析AlN烧结助剂的选择和5种烧结工艺：热压烧结、无压烧结、放电等离子烧结、微波烧结及自蔓延烧结；阐述AlN基板的制备工艺及其影响因素。

And since they are pressureless, you don't have to worry about them going flat.

而且因为它们是低压，你不必担心他们弹跳太直。

Pressureless sintering technique was used to prepare the composites.

本研究以无压烧结的方式制备复合材。

The current status of pressureless infiltration technique at home and abroad is reviewed.

综述了无压浸渗工艺的国内外研究现状以及顺利完成此工艺的前提。

A pressureless permeating method is put forward.

提出用无压渗透法制备铸造表面复合材料的新方法。

The mechanical properties of B4C/Al composite prepared by pressureless infiltration technology were tested.

对无压浸渗法制备的B4C/Al复合材料进行了力学性能测试。

First of all, three kinds of Si〓N〓 ceramics with different microstructure and mechanical behaviour were made by use of pressureless sintering.

首先，利用常压烧结，制备了三种显微结构不同、力学性能各异的Si〓N〓陶瓷。

I use an example quoted by Hu Jiaqi:"It is reported that America separates the DNA of a kind of virus by making use of genetic technology and combines it with another kind of DNA. Finally, they get a kind of virulent biological agent called a "pyrotoxin". Someone discloses in private that 20 grams of such a kind of biological agent could result in the global death of 6 billion people due to infection."

我在这里例举胡家奇所引用过的例子："据报道，美国利用转基因技术，将一种病毒的DNA分离出来，与另外一种DNA进行结合，拼结成一种剧毒的"热毒素"生物战剂，且私下有人透露，这种生物战剂只需20克，就可以导致全球60亿人全部感染死亡。"

Waiting, for the queers and the coons and the Reds and the Jews.

等待着疯子和黑人还有红色共产主义者还有犹太人