查询词典 barium

The influences of particle size and content of barium titanate on dielectric properties of the composite were discussed.

通过共混法制备了苯并噁嗪／钛酸钡复合材料，探讨了钛酸钡粒径和填充量对复合材料介电性的影响。

THE PRODUCTION AND TECHNOLOGICAL DEVELOPMENT OF ELECTRONIC CERAMIC MATERIAL BARIUM TITANATE.

论述了电子陶瓷材料钛酸钡的生产工艺及技术进展，讨论了各种工艺的优缺点。

The preparation and doping method influences the electrical properties of barium titanate strongly.

钛酸钡粉体的制备方法及掺杂方式对陶瓷的电学性质有很大影响。

A method of determining the total sulphur content in the coal by titrimetry of semimelting and barium chloride is tested and researched.

研究了采用玫瑰红酸钠－氯化钡容量滴定法快速测定煤中的硫含量。

Resul ts:Besides the structural changes caused by operation,barium meal rev ealed:①decreased gastrointestinal tonicity and abnormal configuration.②hypokin esis and incoordination of stomach.③moderate gastric retention but with normal emptying of liquid.

结果：除手术引起的胃肠结构改变外，胃肠钡餐还显示：①胃肠张力降低、形态失常；②胃肠动力减弱，运动不协调；③中等量胃潴留，但液体排空正常；④胃肠位置呈中线性变化但无出口狭窄梗阻。

Partial barium borate products used in the coatings industry primer, topcoat, is a new type of anti-corrosion materials.

偏硼酸钡产品主要用于涂料工业中底漆、面漆，是一种新型防锈原料。

Barium titanate(BaTiO_3) has been broadly used as the raw material for heat variable resistor,multi-layer ceramic capacitors, electro-optic device and dynamic random accessmemories.

钛酸钡(BaTiO_3)是性能优异的强介电和铁电材料，被广泛应用于制造热敏电阻器、多层陶瓷电容器、电光器件和DRAM器件。

Similar experiments, but using Chemical Release Modules, have been launched from Churchill, Manitoba. In 1980, Brian Whelan's "Project Waterhole" disrupted an aurora borealis, bringing it to a temporary halt. In February 1983, the chemical released into the ionosphere caused an aurora borealis over Churchill. In March 1989, two Black Brant X's and two Nike Orion rockets were launched over Canada, releasing barium at high altitudes and creating artificial clouds.

同样的但是采用化学释放模型的实验，在加拿大马尼托巴的丘吉尔被启动。1980年，布瑞安威兰的"水洞项目"中断了一次北极光，使之暂时停止。1983年2月，排放进电离层的化学物质引发了丘吉尔上空的北极光。1989年3月，两艘"黑雁X"和两艘"耐克奥瑞恩"火箭在加拿大上空被发射，在高纬度释放钡产生人工云。

A new production technology,using witherite,hydrochloric acid and industrial refined salt as raw materials,to produce liquid barium chloride with low strontium by crystallization method was put forward.

比较了氯化钡的各种生产方法，提出了以毒重石、盐酸和工业精制盐为原料，结晶法生产液体低锶氯化钡新工艺，并对酸化反应、锶钡分离原理、饱和盐水洗涤及母液处理进行了分析和讨论。

Secondly, as to the improvement of cycle life of mercury-free RAM, Calcium zincate, barium zincate and strontium zincate samples were synthesized by a chemical method and used as negative electrode additives in mercury-free RAM for the first time.

其次，在改进无汞可充碱锰电池循环寿命方面，采用化学方法合成了锌酸钙、锌酸钡和锌酸锶样品，首次将其用于无汞可充碱锰电池的负极添加剂。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。