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The material is prepared by mixing barium titanate 80~99% and acetylene black 1~5% with PbO-B2O3 0~15% proportionally, grinding in agate grinder or in ball mill, press forming at pressure 2~10Mpa under vacuum or protecting gas environment.

按80%~99%的钛酸钡、1%~5%的乙炔黑和0%~1 5%的PbO-B2O3玻璃粉的比例混合后,在玛瑙研钵中研磨或者在球磨机中研磨,以压力为2~10MPa压制成型,该陶瓷材料的制备需要在真空或者保护气体的保护下进行。

The metal element powders were mixed proportionally with ZrB2/ZrC/SiC ceramic powders in the cylinder mill, then the quaternary ZrB2/ZrC/SiC+Me ceramics were prepared by hot-pressing mixed powders.

将金属元素粉按一定配比与ZrB2、ZrC和SiC陶瓷粉末混合后热压制备了ZrB2/ZrC/SiC+Me 四元陶瓷,重点研究了四元陶瓷的密度、弯曲强度、断裂韧性、烧蚀性能以及烧蚀前、后的微观组织。

An oncomelania killer is prepared through preparing mother liquid A from hydrochloric acid or 50 wettable powder of nicotinani line sul fate and dechlorinated water , preparing method liquid B from raw powder extracted from Huangqieguo fruit or bardabosnut seed and dechlorinated water , proportionally mixing them together and adding dechlorinated water for different concentrations .

灭钉螺剂及其生产方法,是将盐酸或硫酸烟酰苯胺50%可湿性粉剂加去氯水配成母液,再将由黄茄果果实提取的原粉或由麻风树籽提取的原粉加去氯水配成母液,将两母液按比例混合再加不同量的去氯水配成不同浓度的灭钉螺剂。

In boiler field, proper atomization of high viscosity liquid fuel is the essential assurance to safe .stable and high efficient combustion for boiler; in the propulsion equipment of rockers and turbo jet-propelled engine, the atomization quality of liquid fuel is the precondition to improve combustion efficiency and supply sufficient propulsion; in the field of industrial manufacture, metal powder is made by liquid metal which is impacted by high velocity gas; in the field of agricultural irrigation, the water with certain velocity is used to strike metal disk to make insufflations proportionally to the irrigation field; in the technique of desulphurization and coal gasification, proper design of nozzle is the essential factor to advance the efficiency of desulphurization and coal transformation.

在锅炉领域,高粘度液体燃料的良好雾化是锅炉安全稳定高效燃烧的重要保证;在火箭推进装置、涡轮喷气式发动机中,液体燃料的雾化质量是提高燃烧效率并产生足够推力的前提;在工业生产领域,用高速气流冲击液态金属来制备金属粉末:在农业灌溉中,用一定速度的水流冲击金属圆盘破碎并改变方向实现对灌溉区域的均匀喷洒:在烟气脱硫、煤气化等工艺中,良好的喷嘴设计是提高烟气脱硫效率和碳转化率的重要因素。

Dogs were generally smaller than wolves, their snouts proportionally reduced.

狗的体型明显要比狼小很多,他们鼻子的比例也相应的缩小了。

Sometimes I heard four or five at once in different parts of the wood, by accident one a bar behind another, and so near me that I distinguished not only the cluck after each note, but often that singular buzzing sound like a fly in a spider's web, only proportionally louder.

有时,我听到四五只,在林中的不同地点唱起来,音调的先后偶然地相差一小节,它们跟我实在靠近,我还听得到每个音后面的咂舌之声,时常还听到一种独特的嗡嗡的声音,像一只苍蝇投入了蜘蛛网,只是那声音较响。

Results showed that NBPT mixed proportionally with urea increased the soybean root vigor, root nodule number and weight, the root nitrogen fixation activity,and therefore the root growth was increased by a high content of N in the soybean plant.

结果表明,NBPT提高了大豆整个生长期的根系活力,对根瘤固氮酶活性有促进作用,根瘤数量和重量都有增加,因而大豆植株的含氮量也随之增加,根系生长得到促进。

In this study, NBPT mixed proportionally with urea and NBPT without urea were applied to the soybean plants to analyze the effect of NBPT on the soybean root growth in root vigor, root nodule number and weight, and the activity of nitrogen fixation of root nodule.

为探索利用NBPT提高大豆生长发育的途径,对施用NBPT的大豆,利用氧化还原法,乙炔还原法和凯氏定氮法分别测定了大豆根系活性,根瘤固氮活性和植株含氮量,并测定了大豆根瘤的数量和重量。

Undoubtedly, in this case, what is true for one is truer still for a thousand, as a large house is not proportionally more expensive than a small one, since one roof may cover, one cellar underlie, and one wall separate several apartments.

无疑的在这里,凡是对一个人是真实的,对于一千个人也是真实的,正像一幢大房子,按比例来说,并不比一座小房子来得更浪费钱财;一个屋顶可以盖住几个房间,一个地窖可以躺在几个房间的下面,一道道墙壁更可以分隔出许多房间来。

Comparing guild composition reveals a food resource view of the difference between each landscape: grassland landscape supports proportionally more shrub insectivores than other landscapes; conifer plantation landscape supports more ground feeders and also shrub insectivores; natural forest landscapes support bole insectivores that almost never inhabit conifer plantation nor grassland.

以生态同功群探讨不同地景所能提供的食物资源差异,发现草生地地景能承载较多的灌层虫食者、人造针叶林地景拥有较多的地面觅食者与灌层虫食者、天然林地景拥有的树干虫食者则几乎不出现在其他地景内;然而数量最多的树层觅食者在各地景间差异不明显。

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推荐网络例句

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力