查询词典 voltage

Made the voltage changer and outfeeder's protection setting calculation, mastered the principles of the main apparatus and secondary circuit.

继电保护装置应用于主要电气设备和二次接线回路中；并熟练掌握了变电所内主要电气设备和二次回路的工作原理。

K.V.A.,step down transformars 11000/415V,DYN 11.three phase,50Hz,onan cooling oil immersed with conservator and tap changer,impedance voltage 4% at 65C

容量为200KVA，降压变压器，电压等级为11000/415V，联结组别为DYN11，三相，频率为50HZ，油浸自冷，带有储油柜和分接开关，阻抗电压：65C时，为4

Second,. according to the sector of voltage space vectors, adjacent switching state vectors are selected to calculate on-durations under volt-second balance principle. The questions of judging sectors and sector transition are discussed and qualitative analysis of performance is carried out.

由三相电压源型逆变器输出电压波形得到六个有效开关状态矢量，这六个开关矢量和两个零矢量合成一组等幅不同相的电压空间矢量，去逼近圆形旋转磁场。

The key techniques of STM IPC-205B were shown as following: the design of the micro-displacement transmission system with wide scope and high speed; the physical mechanism and vibration-proof measures which greatly influence the theoretical precision of STM; the basic design theory of scanning system and data collection system; the methods of the intelligent control of scanning voltage and the logarithm contraction of tunnel current.

对STM IPC-205B型机关键技术进行了探讨，主要包括：大范围快速扫描的微位移传动系统的设计；对实现STM理论精度有重大影响的振动源的物理机理以及防振的措施；扫描与数据采集系统设计的基本理论；给出了实现扫描电压的智能控制和对隧道电流进行对数压缩的方法。

A chopper does not drop the voltage by dissipating it as heat, but buy varying the duty cycle (ratio of on-time to off-time), and it does not limit the current.

一把菜刀不下降的电压由消退它作为热，但购买不同占空比，它并不限制电流。

The major products for the cable pressure, machine, cable-hot machine, cable dryer, cable tester comprehensive testing, AC-DC pressure tester, vacuum switch vacuum tester, DC high-voltage generators, fire-retardant heat-tape, such as Die Equipment and accessories, complete specifications, performance good, reasonable price and abide by the contract, implementation of Three Guarantees, the agency checked.

产品主要为电缆压号机、电缆热补机、电缆干燥机、电缆综合探伤测试仪、交直流耐压测试仪、真空开关真空度测试仪、直流高压发生器、阻燃热补胶带、模具等设备及其配件，规格齐全，性能良好，价格合理，信守合同，实行三包，代办托运。

Companies rely on some of Xi'an University of Electronic Science and Technology professor, research institutes of technology support, long-term cooperation in research and development power automation, electrical testing, electrical testing equipment, including: Switching mechanical properties tester, vacuum tester, cable fault tester, cable test Management systems, cables altimeter instrument, relay calibrator, DC high-voltage generator, or flow, test transformers, DC Resistance Tester, loop resistance tester, and change than the group tester, MOA tester, Transformer test aircraft, dielectric loss tester, ground resistance tester, such as electric Zhaoou table.

公司依托西安电子科技大学部分教授，科研院所的科技支持，长期合作研发电力自动化、电力测试、电气试验仪器设备，包括：开关机械特性测试仪、真空度测试仪、电缆故障测试仪、电缆测试管理系统、电缆测高仪、继电保护校验仪、直流高压发生器、升流器、试验变压器、直流电阻测试仪、回路电阻测试仪、变比组别测试仪、氧化锌避雷器测试仪、变压器试油机、介质损耗测试仪、接地电阻测试仪、电动兆欧表等。

Therefore, this problem is of great importance for any circuit breaker especially for vacuum circuit breakers of a low voltage which are of a compact structure.

因此，这一问题特别是对结构紧凑的低压真空断路器尤为重要。

And the quantum fluctuation and the corresponding uncertainty relation of current and voltage grow with increasing the Wehrl entropy.

结果表明，Wehrl熵不仅和谐振子的本征频率有关，而且与热场温度有关；生物细胞等效电路中电流和电压的量子涨落及相应不确定关系随Wehrl熵增加而增加，随Wehrl熵减小而减小；Wehrl熵是表征介观生物细胞量子效应的最好度量。

The main production are: Lightweight warehouse shelves, in the amount of shelf-type, weight type rack, cantilever rack, special auxiliary equipment, low-voltage distribution box, multi-media boxes and various metal products.

主要生产有：仓储式轻量型货架、中量型货架、重量型货架、悬臂货架、专用辅助设备、低压配电箱、多媒体箱以及各类五金制品。

Dihydropyrimidin-2 (1H)-ones were synthesized by condensation of aromatic or aliphatic aldehydes, urea and ethyl acetoacetate or acetylacetone one-pot three-component Biginelli condensation in the presence of room temperature ionic liquids as catalysts under solvent-free conditions.

5利用室温离子液体作催化剂，芳香或脂肪醛、尿素和乙酰乙酸乙酯或乙酰丙酮三组分缩合制备3，4-二氢嘧啶-2-酮衍生物。

Notwithstanding the provisions of Paragraphs 1 and 2, where a person (other than an agent with independent status to whom the provisions of Paragraph 6 apply) who is acting in one side on behalf of an enterprise of the other side, has and habitually exercises the authority to conclude contracts in the name of the enterprise, that enterprise shall be deemed to have a permanent establishment in the first-mentioned side in respect of the activities which that person undertakes for the enterprise

五、虽有本条第一款和第二款的规定，当一个人（除适用第六款规定的独立代理人以外）在一方代表另一方的企业进行活动，有权并经常行使这种权力以该企业的名义签订合同，这个人为该企业进行的任何活动，应认为该企业在该一方设有常设机构。