直流电

Conversion of alternating to unidirectional current.

直流电和交流电同步转换的机器。

The programme through the transformer transformer, through the rectifier circuit filter circuit which will be AC into DC, and the adoption of the regulation by regulators more stable voltage, input voltage regulator when it can only be fixed when the voltage difference within the scope of regulation of the output voltage, and therefore out of voltage difference in the scope of automatic Diaodang, it is through the two comparator output voltage and the reference voltage comparison, and through the counter counting function control relay controller The input to determine the size of the output voltage at which the scope, and then automatically Diaodang.

该方案是通过变压器变压，再经过整流电路、滤波电路进而将交流电变为直流电，在通过稳压器的稳压得到较稳定的电压，由于稳压器当输入电压固定时只能在它的电压差范围内调节输出电压，、所以要在调出电压差的范围时自动调档，这是通过两个比较器将输出电压和基准电压进行比较，再通过计数器的计数功能控制继电器控制器的输入情况来判断输出电压的大小在哪个范围，然后进行自动调档。

ATTERY, An electrical device for changing stored

通常以多少寸高水银柱（in 瓶，的化学能转变为直流电的电气装置。

2In vitro experiment, a copper needle, an iron needle and a stainlss steel needle were put in citrated anticoagulant healthy blood specimens respectively.

体外实验分别将铜针、铁针和不锈钢针置于健康人枸橼酸抗凝血中，接 3～ 6V直流电 30min ，在通电前、中、后检测各标本血浆游离Hb值；推血片光镜下观察RBC形态。

Methods Both a rat model with habenular lesion and a hypnotic-treated rat model were established by passing a DC current or by infusing with zolpidem into the stomach and then the rats were divided randomly into habenular sham group,habenular lesion group,vehicle group and zolpidem group.The mRNA levels of adenosine and 5-HT-related genes were examined by RT-PCR in the PO/AH.

以30只雄性Wistar大鼠为实验动物，直流电损毁缰核或灌胃给予催眠药唑吡坦建立缰核损毁大鼠(n=15)和唑吡坦处理大鼠(n=15)两种动物模型，随后随机将大鼠分为缰核假手术组(n=7)、缰核损毁组(n=8)、生理盐水对照组(n=7)和唑吡坦处理组(n=8)。

It was found that the heteropolar space charges in composites were more than those in pure LDPE; Field-induced-thermally-ionization appeared in microcomposite obviously.

本文采用电声脉冲法(Pulsed-electro-acoustic Method， PEA)研究了纯LDPE、不同浓度的Nano-SiOx/ LDPE和Micro-SiO2/ LDPE复合材料等在中等直流电场下(5-20kV/mm)的空间电荷分布。

The results show that the polymer determines the electricity conducting of coal filled polymer composites. The coal filled PP composites is an insulating material, and be independent of coal type, its direct current resistivity is above 10〓Ω·cm. The resistivity drops with the content of coal when using anthracite, but it is also above 10〓Ω·cm, and the surface modification of coal, especially alkylated, resumes the insulance of composites.

X射线衍射测试表明即使在高变质程度下煤中的石墨晶区含量仍较低，煤填充聚合物复合材料电性能主要由基体材料性能决定，通过动电容静电计对煤填充聚丙烯复合材料直流电导性研究表明，煤填充聚丙烯复合材料是绝缘材料，其绝缘电阻在10〓Ω·cm以上，在高含量情况下，仍能保持良好的绝缘性，而与煤种无关。

The quick-running ironless core DC industrial motor provides low moment of inertia for fast acceleration, and the specially designed planetary gear can run with high torque at low noise levels.

它有着不锈钢体，以及IP66保护。快速运转的无铁芯内核直流电工业引擎为高速的加速度提供了低转动惯量。特殊设计的行星齿轮可以低噪音水平高转矩地运作。

The quick-running ironless core dc industrial motor provides low moment of inertia for fast acceleration, and the specially designed planetary gear can run with high torque at low noise levels.

快速运转的无铁芯内核直流电工业引擎为高速的加速度提供了低转动惯量。

A ferrite effectively even with a significant net DC or low frequency magnetomotive force input.

在输入一显著的净直流电或低频生磁力之下，铁氧磁体能仍可能有效的运作。

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％。