Results show that it is difficult to make cathodic protection on bare steel because of large current density, and that cathodic protection is suitable for coated steel.
试验结果表明，对裸钢采用阴极保护时，所需电流密度较大，实施难度较大；而对有涂层的钢则更宜采用阴极保护措施。
But it provides too small emission current density and gives a large gate current.
但不足之处是发射电流密度太小和有较大的栅极电流。
Configuring large power supply in high load density networks and interconnections between power grids will cause enormous short-circuit current.
配置大电源在高负荷密度网络和电网之间的相互联系，会造成巨大的短路电流。
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