To improve beamforming under low signal-to-noise ratio, a method based on stochastic resonance ( SR) in a bistable model is investigated by using a frequency scale transformation method.

With electromagnetic, electrothermal, and electrostatic micro actuators, this bistable structure can be applied to permanent magnet bistable MEMS relay.

此双稳态机构可与电磁驱动、电热驱动和静电驱动等类型的微驱动器联用构成永磁双稳态MEMS微继电器。

Test and analyze the I-V characteristics, bistable characteristic and circuit characteristic of RTD.

对RTD直流、双稳特性和电路特性进行了测试和分析。

The indexes were compared with those ones in gold electrolyte preparation with bisque firing crucible process.

阴离子交换膜在金电解造液过程中的技术指标，其优于素烧坩埚金电解造液技术指标。

As main minerals holding native gold, bismuth minerals are closely coexisting with native gold.

铋矿物作为主要载金矿物，与自然金紧密共生；

With high-speed shear reactor, super-fine and high purity bismuth oxide powders were prepared using bismuth nitrate and ammonia carbonate solutions as raw materials.

利用硝酸铋溶液和碳酸铵溶液为原料，采用高速剪切反应器，500℃煅烧后可以生产出高纯、超细的氧化铋粉末。

Preparation of nano-sized bismuth oxide nitrate hydroxide hydrate particles by a reverse microemulsion method

反相微乳液法制备纳米四水羟基硝酸氧铋

Reduction of Aromatic Nitro Compounds with Hydrazine Hydrate Catalyzed by Bismuth Oxide Hydroxide Supported on Activated Carbon

活性碳负载氢氧化氧铋催化水合肼还原芳香族硝基化合物

Method: 60 children suffered from diarrhea were divided into two groups randomly: Group A was treated with oral Golden bifid and Smectite powder, Group B with Bismuth Subcarbonate.

方法：60例腹泻患儿随机分为两组，治疗组给予金双歧、思密达口服，对照组口服次碳酸铋等，并进行疗效判断。

Bismuth Subcarbonate to Assisted Treat 7 Cases of ⅱ and ⅲ Stages of Decubitus

次碳酸铋辅助治疗Ⅱ期和Ⅲ期褥疮7例

Y: Right, but the thing is, when the bismuth combines with the trace amounts of sulfur in your saliva and in your gastrointestinal tract, it reacts to form a black substance called bismuth sulfide.

Y:嗯。但是，铋与唾液和胃肠道中微量的硫作用会生成一种黑色的物质——硫化铋。

The bismuth sulfide nanoparticle and self-assembly system have more excellent optoelectronic and catalytic properties, which have a broad application prospects in the light-emitting materials, nonlinear optical materials, photocatalytic materials.

纳米Bi2S3及其组装体系具有优异的光电和催化性能，在发光材料、非线性光学材料、光催化材料等方面有着广泛的应用前景。

The results show that well crystallized bismuth sulfide nanorods can be obtained by refluxing at 160 ℃ in ionic liquid.

结果表明，在含有乙基硫酸根离子的1甲基3乙基咪唑盐的离子液中，160℃下回流反应，可以得到结晶良好的硫化铋纳米棒，并对其形成机理进行了探讨。

Bismuth sulfide nanorods were synthesized in ionic liquid using bismuth nitrate and thiourea as precursor.

采用硝酸铋和硫脲为先驱原料，以离子液为反应介质，合成了硫化铋单晶纳米棒。

And bismuth sulfide can also temporarily darken the stool.

而且，硫化铋还会使排泄物变黑。

This method for bismuth sulfide can make accurate controllability on shape and size feasible.

这种方法在对硫化铋的形貌尺寸有着精确可控的特点。

Extraction separation of bismuth with ethanol-ammonium sulfate-potassium iodide system

乙醇-硫酸铵-碘化钾体系萃取分离Bi（Ⅲ）的新方法

It was used to determine the content of bismuth in manganese sulfate.

测定了硫酸锰试剂中铋的含量。

The effect of bismuth sulfate content in plating bath and current density on current efficiency, bismuth content and morphology of obtained tin-bismuth alloy was studied.

研究了镀液中硫酸铋含量和电流密度对镀层铋含量、电流效率及镀层表面形貌的影响。

The amount of bismuth citrate in ranitidine capsules was determined by HPLC.

用高效液相色谱法测定了枸橼酸铋雷尼替丁胶囊的含量，并与络合滴定法的测定结果进行了比较。

Determination of ranitidine bismuth citrate in its capsules by UV spectrophotometry

枸橼酸铋雷尼替丁胶囊有效成份的紫外分光光度法的测定