真空

Electrons can be easily injected from thegraphitic matrix into the conduction rand of diamond under the high field which resultedfrom the projection field enhancemext.These injected electrons could reach the vacuumsurface and then emit into vacuum where the negative electron affinity or low electronaffinity could allow the electrons to re emitted more easily.

由于场增强效应，对镶嵌在非晶碳颗粒表面的金刚石晶粒来说，电子在高场作用下通过隧道效应越过金刚石晶粒与非晶碳形成的界面势垒，注入金刚石的导带，在电场的作用下迁移到表面，由于某些金刚石表面具有负电子亲和势或较小的正电子亲和势，电子较易发射进入真空。

Quick diathermancy avoid damage to CMOS chip and solder. Precise design and good technics avoid damage due to attrition. Vacuumize avoid alterative because of oxygenation during transportation . Antistatic plastic core.

传热吸收快，尽可能的避免对芯片和焊盘的损坏；精确的设计和制造工艺避免磨擦对焊盘可能造成的损坏；真空包装避免産品在运输途中氧化变质；防静电塑料芯；符合美国军队及国家宇航局各种标准。

Throughout, the author makes excellent use of real-life examples and highly praised didactics to disseminate his expert knowledge needed by vacuum technology users and engineers in their daily work at industrial plants, as consultants or in design offices.

全部， 作者极好利用真正生活的例子并且非常称扬didactics 传播在他们的每日作业里真空技术用户和工程师需要的他的专家知识，工业植物，作为顾问或者在设计办公室。

On the contrary, the selective strengthening of copper phase can not contribute to the dielectric strength.

因此，要提高CuCr合金在真空间隙中的耐电压强度，必须对其进行选择性的相强化，即选择性地提高Cr相的耐电压强度。

Experimental results show that the dielectric strength increases significantly when the Cr phase is selectively strengthened.

例如，CuCr触头合金是由Cu相和Cr相组成的，而CuCr合金在真空中的电击穿首先选择发生在耐电压能力较弱的Cr相的表面［4］。国外研究者也有类似的研究结果［5］。

And the devices'properties and improve the properties to prepare the artificial boundary. The bi-epitaxial YBCO superconducting film with 45°grain boundary in a-b plane was made for the first time in China in this article by magnetic sputtering instrument that was designed and fabricated by ourselves. The x-ray θ～ 2θ scan 、Ф scan、rocking curve、non-symmetry diffraction and SEM、 TEM、AES etc. were utilized in the study.

为此，本工作采用自行设计制造的全金属密封超高真空磁控溅射设备，利用x射线θ～2θ扫描、Ф扫描、摇摆曲线、非对称衍射及SEM、TEM、AES等分析测试手段，在国内首次、也是至今唯一的一家，制得a—b平面内具有45°人工晶界的双外延YBCO超导薄膜，并进而得到双外延晶界Josephson结。

Exercise 6 , To demonstrate permittivity in vacuum is actually a dimensionless physical constant.

习题6，试证明真空电导率实际上是一个无量纲的物理常数。

The dioxane solution was concentrated by evaporation and the remaining oil was distilled in vacuo on a water bath.

在二氧六环的解决办法是通过蒸发浓缩和剩余油是在真空中蒸馏水上热水澡。

It is manufactured under high vacuum conditions use plasma discharger basic theory to uniformity spatter the SiO2 thin film and ITO thin film on the ultra thin float glass.

它是在高真空环境下，运用等离子放电的基本原理，在超薄浮法玻璃上均匀地溅射上SiO2和ITO薄膜而得到的。

Content question: there is no space in the universe, we observed with space is matter and field components space, the expansion of space is substances and substances in the expansion of the field, all moving substances and substances will be in a field-the-field sport, including light and electromagnetic waves, like automobile from the disconnexion in the same way, there is no absolute vacuum of space, there is no absolute coordinate system, all substances campaign has been relative motion.

内容题要：宇宙是没有空间的，我们观测的空间是物质和场物质组成的空间，空间的扩大也是物质和场物质在扩大，所有运动的物质和场物质都会在一个场上运动，其中包括光和电磁波，好象汽车离不开路一样，不存在绝对真空的空间，也没有绝对坐标系，所有物质运动都是相对运动。

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