Rectangular connectors for frequencies below 3mhz part 8 : detail specification for connectors , four - signal contacts and earthing contacts for cable screen 频率低于3mhz的矩形连接器第8部分:具有4个信号接触件和电缆屏蔽用接地接触件的连接器详细规范
Specification for protected - type non - reversible plugs , socket - outlets cable - couplers and appliance - couplers with earthing contacts for single phase a . c . circuits up to 250 volts 电压达250v单相交流电路用带接地线的保护式不可反转插头插座电缆藕合器与设备藕合器规范
In the measurement of the high density resistivity method , there is often some false data in the data section because of the influence of poor earth contact of electrodes and other interference factors etc . , which can cause false abnormality of data section and make data interpretation difficult 摘要针对在高密度电阻率法测量过程中，数据断面易出现突变点，而造成电阻率拟断面图虚假异常，难以准确解释的情况提出了一种快速、高效的剔除突变点的方法。
