查询词典 barium

Methods Thirty cases of healthy subjects and 50 patients with constipation swallow 40 g barium meal once, then abdominal fluoroscopy or plain films were taken until barium meal being egested totally.

方法30例健康人和50例便秘病人一次吞服40g钡糊后行腹部X线检查，直至钡剂完全排出。

When crude price remained a high level,the quantity of bittern increased,adding method of barium chloride was innovated,and the rate of chemical reaction of barium chloride increased,the cost of caustic soda would be reduced.

介绍了SO42-在盐水生产系统中的平衡情况及去除方法，指出在原盐价格坚挺的情况下，增大卤水用量，改进氯化钡的加入方式，提高氯化钡的化学反应率，可降低烧碱生产成本。

Hydrothermal synthesis of tetragonal barium titanate from barium chloride and titanium tetrachloride;2. Sintered sample which has different amount of monoclinic and tetragonal phase at room temperature is obtained at different sintering temperature.

通过化学组成和相含量设计，采用湿混法制备了MgO和Y2O3共同稳定ZrO2粉末，在不同的温度下烧结，获得了室温下单斜相和四方相含量不同的烧结样品，用X射线峰宽化法测定并计算了粒子尺寸。

The experimental results showed after the mother liquid being reused circularly,the overall yield of barium chloride can reach 92.5% and the mass fraction of strontium in the barium chloride was 0.016%.

实验结果表明，母液循环利用后，氯化钡总收率可达92.5%，氯化钡中锶质量分数为0.016%，产品质量完全满足氯碱企业盐水精制低锶要求，节省了运行费用。

A harmonic of Nd:YAG laser (532nm) pumped barium nitrate crystal in external resonator and excited stimulated Raman laser. Experimental setup adopted the Raman shifter consisted of external cavity and two prisms spectrometer. The external cavity was composed of diachronic mirrors with optimal reflectivity for Stokes components. Barium nitrate crystal was grown by the aqua-solution cooling method with the size of 48mm×10mm×10mm.

采用单端泵浦的外置拉曼振荡腔与双棱镜分光装置进行了硝酸钡晶体拉曼激光实验，泵浦源为倍频Nd：YAG的532nm激光，硝酸钡晶体通过水溶液降温法生长，尺寸为10mm×10mm×48mm，采用特殊镀膜的腔镜对各阶斯托克斯光进行优化选择。

Because of the very low resistivity of metallic layered barium lead oxide , in this work, BaPbO3 or BP ( Pb3O4+ BaCO3) was added into barium titanate-based PTCR to reduced its resistivity at room temperature.

实验通过四种铅酸钡的加入方式，探讨在BaTiO3 中复合铅酸钡的最佳途径。

The scandium oxide doped in the barium-calcium-aluminate 5BaO·3CaO·2Al2O3·0.6Sc2O3 compound is supposed to be a carrier for aarium oxide or barium atom which is the electron source, and it plays the role in controlling and roplonishing the electron source.

在掺氧化钪的发射物质5BaO·3CaO·2Al2O3·0.6Sc2O3中，氧化钪的作用则在于它和铝酸盐中的可利用氧化钡结合为2BaO·Sc2O3，成为电子发射源氧化钡或钡原子的载体，它起控制和补充发射源的作用。

Barium sulfona te and barium soap of petroleum ester oxide were dissolved in kerosene or machin e oil to prepare oil-soluble corrosion inhibitor.

将石油 磺酸钡和氧化石油脂钡皂溶于煤油或机油中制得缓蚀剂。

Solubility of barium chloride and barium oxide in hydrochloric acid, ethanol,acetone,ether and hydrochloric acid- ethanol,hydrochloric acid- acetone,hydrochlo- ric acid- ether has beeen studied and the separation of Ba O from Ba Cl\- 2 with hydrochloric acidethanol as the solvent has been proposed.

研究了氯化钡和氧化钡在盐酸、乙醇、丙酮、乙醚及盐酸-乙醇、盐酸-丙酮、盐酸-乙醚中的溶解性，提出以盐酸-乙醇为溶剂进行两者的分离。以 DBC- CPA为显色剂分光光度法测定氧化钡的含量，加料回收率为 98%～ 10 2 %，氧化钡含量为 0 。32 %时，平行测定 7次，相对标准偏差为 1。 58%。该法适于快速测定热处理盐浴中氧化钡的含量，对监控盐浴品质有指导意义

The peroxide precursor of barium titanate and barium titanate nanopowder prepared were characterized to be BaTi(H2O2)2O3 by TGA-DTA, XRD, TEM, SEM, and XREDS.

借助TGA-DTA、XRD、TEM、SEM等分析测试手段，证实所制得的钛酸钡过氧化物前驱体为BaTi(H2O2)2O3，其煅烧产物纳米钛酸钡粉体的粒径在20～40nm，探讨并提出了过氧化物前驱体热分解法制备纳米钛酸钡的反应机理。

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％。