It had a huge ballast hidden in the handle and a very substantial extension cord.
把手里藏着一个巨大的镇流器，和一根非常结实的延长线。
2
Plug-in design of Iron, hot air handle, tweezers and power cord is easy replacement, save the maintenance cost and transportation expense.
烙铁，热风手柄，镊子及电源线均为接插式设计，方便替换，节省维修费及运输费用。
3
Doctors in emergency room may not know how to handle AD crises in people with spinal cord injury and it may be useful for patients to carry a card that give treatment instructions.