查询词典 barium

The US Preventive Task Force and other national organizations recommend that individuals aged 50 years or older undergo screening for colorectal cancer using 1 or more of the following methods: fecal occult blood testing every year, sigmoidoscopy or double-contrast barium enema every 5 years, and colonoscopy every 10 years.

美国预防小组与其他国家机组织建议50岁以上的人们应该接受下列任一大肠直肠癌筛检方式：年度粪便潜血反应、每五年一次的乙状结肠镜或是双对比钡剂浣肠、以及每十年一次结肠镜检查。

The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

The process improvement of flaky sodium hydrosulfide production;2. The production method and processing conditions of sulfur,sodium hyposulfite, sodium hydrosulfide and thiourea from hydrogen sulfide tail-gas in the production of barium carbonate by carbonation method are introduced.

介绍了利用碳化法生产碳酸钡的硫化氢尾气生产硫磺、硫代硫酸钠、硫氢化钠和硫脲的生产方法和工艺条件，指出硫化氢的综合利用生产工艺简单，产品质量稳定，容易工业化，产品成本低，同时消除了硫化氢尾气对环境的污染，有巨大的经济效益和社会效益，发展前景非常广阔。

The studies on dielectric relaxation, dielectric nonlinearity and electrically tunable mechanism on barium stannate titanate ferroelectric ceramics are of both academic and practical importance.

以钛锡酸钡陶瓷为研究对象，开展铁电陶瓷的介电弛豫、介电非线性以及电场可调机理的研究具有重要的学术意义和应用价值。

The studies ondielectric relaxation, dielectric nonlinearity and electrically tunablemechanism on barium stannate titanate ferroelectric ceramics are of bothacademic and practical importance.

以钛锡酸钡陶瓷为研究对象，开展铁电陶瓷的介电弛豫、介电非线性以及电场可调机理的研究具有重要的学术意义和应用价值。

A basic review on dielectric nonlinearity and electric tunable mechanism was performed in view of thermodynamics, ferroelectric domain, polar nanoregion, field induced phase transition, grain boundary layer and AC dielectric nonlinearity. The dielectric nonlinearity phenomena in barium stannate titanate ceramics were studied and the field dependences of dielectric constant and loss tangent were showed.

关于低温介电弛豫行为与极性微区关系的讨论涉及到了弛豫铁电体与扩散相变铁电体之间的相容关系，作者认为所有的扩散相变铁电体都应该是弛豫铁电体或潜在的弛豫铁电体，它们的区别仅在于能够观测到介电弛豫现象的测试频率范围不同。

Often they include barium stearate, which serves to enhance HAARP and military radar transmissions.

他们往往包括硬脂酸钡，服务，以提高haarp和军用雷达传送的安全性。

Barium Strontium Titanate has been recognized as a kind of ideal material for phase shifters.

钛酸锶钡材料被普遍认为是最有前途的铁电移相器材料。

Liquid method is preferable in preparing barium strontium titanate powders with high performance.

液相法是制备性能良好的钛酸锶钡粉体的有效方法。

The optimum reaction conditions and the influencing factors were studied. In the presence of gum arobic, arsenazo Ⅲ-barium in acid solution could combine with BSA to form a ternary complex leading to a redshift of absorption spectrum and significant increase of absorption peak intensity.

研究发现，在表面活性剂阿拉伯树胶存在下的酸性溶液中，偶氮胂Ⅲ-Ba配合物与BSA发生反应形成三元复合物，引起吸收光谱发生红移，吸收峰明显增高。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。