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The morphologies of diamond include cube, cuboid, octahedron, cuboctahedron, twinned cuboctahedron, decahedron and icosahedron and ball-like diamond using SEM observation. The formation condition of the grains is discussed.

用SEM观察CVD金刚石晶粒形态主要有立方体、长方体、八面体、立方八面体、李晶八面体、十面体和二十面体颗粒以及球形金刚石,讨论了晶粒的形成条件。

In 1971, France units of mass confusion in order to change the situation, the provisions of 1 cubic decimeter 4 degrees Celsius in the water under the weight of 1 kg.

1971年,法国为了改变质量单位混乱局面,规定了1立方分米纯水在4摄氏度下的质量为1千克。

Among these schemes the most famous one is introduced by Ref. [45] in which the problem of the construction was merged into that of the decomposition of the cubic group.

这里面最著名的是文献[45]所介绍的方法,这种方法将具有确定自旋的算符的选取问题归结为立方点群的分解问题。

The container is from India or Asia and is made of an inner liner and an outside body, both pieces being deep-drawn stainless steel.

需要货品:用作运送对热力敏感的医疗产品之长方形真空绝热器皿,由印度或亚洲供应商所提供,它是由钢内壁套和外壳构成,容量约1立方呎。

Using finite difference time domain method, the electromagnetic field distribution of THz wave is simulated in a THz 2D PC splitter and by plane wave expansion method the dispersion relation and defect modes are achieved in a THz rotated PC waveguide.5. A woodpile three-dimensional (3D) PC with face-centered-tetragonal symmetry is one of the most popular 3D PCs because of its favorable band gap characteristics. Based on the woodpile fct lattice structure, we propose a novel woodpile THz lattice structure with comparatively decreased symmetry, better band gap properties and easy fabrication by varying some structure parameters.

计算结果为利用非线性光学差频方法产生THz辐射源的实验研究提供了深入和全面的理论基础;四、利用平面波展开法,通过改变二维THz光子晶体的结构参数,对二维THz光子晶体完全带隙进行了优化,分析出两种适合工作在THz波段的二维光子晶体结构;采用时域有限差分法和平面波展开法,计算出THz波在二维光子晶体"T"型分束波导,45度旋转波导中传输的电磁场分布以及缺陷模;五、Woodpile面心立方四角结构是三维光子晶体中被研究最广泛的结构之一。

Very strong cube texture could be obtained through the combination of suitable speed ratio, corresponding deformation and heat treatment.

适宜的速比,相应的形变量和与之相匹配的退火工艺,可以获得强的立方织构。

After disinfection and medical activities before, samples were taken from three points in a diagonal of a relatively closed space with area not more than 30 square meters. In general, one point was from diagonal center, and the other two points from the two ends with one meter distance to walls. When the area exceeded 30 square meters, samples were collected from five points, one was from the center, and the other four points from four angles with one meter distance to walls, and the altitude was 80-150 cm from vertical distance to the ground. The total number of microbes not more than 200cfu/m^3 was considered qualified.

消毒后和进行医疗活动之前,相对封闭的空间,面积≤30平方公尺时,在一条对角线上取3点采样,一般是中心和两端距墙壁1米处各取1点;面积>30平方公尺时,应取中央及四角距墙壁1米处共5点采样,布放高度为垂直地面80cm~150cm,微生物总数≤200cfu/立方公尺为合格。

The results show that there is a linear correlation between magnetic susceptibility and density. Take 1.6 g/cm^3 as a boundary value, the magnetism of high density coal and low density coal was opposite. The diamagnetism property of low density coal weakens and the paramagnetism of high density coal enhances along with the size reduction of fine coal. The magnetic field intensity influences the magnetism of coal.

研究表明:比磁化率同密度间存在线性相关关系,以1.6 g/立方公分为界,高、低密度级煤分别呈顺磁性和逆磁性,且随煤粉粒度的减小,低密度级煤的逆磁性减弱,而高密度级煤的顺磁性增强;磁场强度对煤的磁性有一定影响。

Is located in the city, the northwest region of considerable size artificial diamond, CBN wheel, diamond drill bit products and professional manufacturing enterprises.

西安航都超硬磨具有限公司坐落在西安飞机城内,是西北地区颇具规模的人造金刚石、立方氮化硼砂轮,金刚石钻头及其制品的专业生产制造企业。

On September 11, Brazil's Daniel Dias and Erin Popovich of America win their fourth gold at the 2008 Paralympics.

11日,在"水立方",巴西小伙丹尼尔·迪亚斯和美国姑娘艾琳·波波维奇当天均获得了个人在北京残奥会上的第四枚金牌,成为令人羡慕的"四金霸主"。

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According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm~150rpm时取得最大值,此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世,形体几无变化。

When I was in school, the rabbi explained everythingin the Bible two different ways.

当我上学的时候,老师解释《圣经》用两种不同的方法。