如电阻丝烧断，应更换磁场变阻器。
If the resistance wire is burnt out, change another field rheostat.
这个加热器需要一组新电阻丝。
陶瓷管作为电阻丝骨架的同时，又具有散热器的功效。
The ceramic tube can function as resistance wire skeleton and heat radiator as well.
陶瓷管作为电阻丝骨架的同时，又具有散热器的功效。
The ceramic tube can function as resistance wire skeleton and heat radiator as well.
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