这条流得很慢的宽广的河就是铜矿河.This wide and sluggish river was the Coppermine.这里有宽广的田地与高高的大树.There were wide fields and tall trees.一月里她在那个宽广的路口上曾经遇见过他.In January she had seen him at the great wide cross....
Islanding detection is a mandatory function for grid - connected photovoltaic ( PV ) converters .孤岛检测是 光伏 并网逆变器所必备的功能.Series 6 SG 70 SIMOTRAS HD converters are characterized by their compact, space - saving construction....
Contamination - proof is an absolute necessity in the maintenance of fluidic devices.防止污染对保养射流装置是绝对必要的.Then the difference between fluidic light discharge theory and Townsend discharge theory is also described.同时阐述了流光放电理...