高压开关设备严重冰冻条件下的操作试验的英文

operating tests under severe ice conditions for highvoltage switchgearr

• 高压开关:    high-pressure cock ...
• 设备:    equipment; device; ...
• 严重:    serious; grave; gr ...
• 冰冻:    frozen; frost; fre ...
• 条件:    condition; term; f ...
• 下:    below; down; under ...
• 的:    4次方是 The fourth po ...
• 操作:    operate; manipulat ...
• 试验:    experiment; test; ...