查询词典 ammeters

But many problems still unresolved due to the disaccord of the electrical communication protocols which relevant to the types of ammeters, communication channels, and bring the disadvantage to the electrical charge systems integration, maintenance and upgrading. For solving the interoperation of power communication protocols, DLMS UA proposed a new communication protocol called DLMS /COSEM which world widely used and accepted as international standard by IEC and TC13 in recently years. The research in this area has just begun in China.

但是，这些系统由于选用的电能表型号不同、通信信道类型多种多样，而造成电能表通信协议不统一，给集中抄表带来了系统集成、维护和通信信道维护及升级困难等诸多问题，为了解决电能表通信协议的互操作性问题，DLMS用户协会提出了一种新的通信协议—DLMS／COSEM，目前已由IEC、TC13采纳作为国际标准，近年来在全世界范围得到了应用，我国在这方面的研究刚刚起步。

UPM303 replaces multiple analog meters as well as single function meters such as voltmeters, ammeters, wattmeters, etc.

UPM304可替代许多指针表，如电压表，电流表，有功功率表等单一功能仪表。

UPM305 replaces multiple analog meters as well as single function meters such as voltmeters, ammeters, wattmeters

UPM305 可替代多种指针表，如电压表，电流表，有功表，无功表，频率表，功率因数表，电能表等单一功能仪表。

UPM307 replaces multiple analog meters as well as single function meters such as voltmeters, ammeters, wattmeters

UPM307可替代多种指针表，如电压表，电流表，有功功率表，无功功率表，频率表，功率因数表，电能表等单一功能仪表。

UPT2010 replaces multiple analog transducers as well as single function devices such as voltmeters, ammeters, wattmeters, varmeters, frequency-meters, powerfactor-meters, energy-meters, etc.

UPT2010可替代多种模拟变送器，及单一功能的模拟表。如电压表，电流表，有功功率表，无功功率表，频率表，功率因数表，电能表等。

UPT210 replaces multipleanalog tranducers as well as single function devices such asvoltmeters, ammeters, wattmeters, varmeters, frequency-meters,powerfactor-meters, energy-meters, etc.

UPT210可替代多种模拟表，如单一功能的电压表，电流表，有功功率表，无功功率表，频率表，功率因数表，电能表。

It is impractical in laboratory calibration with this infinite single wire which can be replaced by an N-turn coil. According to the equal ampere-turn principle, it is feasible to calibrate the high current range of the clamp ammeters with low current. However, the calibration coil brings new uncertainty into the calibration.

根据等安匝原理，实验室常用多匝校验线圈代替单根导线对钳型表进行校准，如此只需小电流即可对钳形表大电流量程进行校准，但是校验线圈这种校准方法会引入新的测量不确定度。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。