Arrange an auxiliary cooking and heating source that can be used outside. One alternative is a portable camp stove with small cans of gas.
准备一个备用的户外烹调和取暖用具，可以准备一个便携式露营灶和几小罐煤气。
The tunnel stove has electric heating and gas type two kinds, chose any one kind of them.
隧道炉有电加热炉和燃气炉二种，任选一种。
The tunnel stove has electric heating and gas type two kinds, chose any one kind of them.
隧道炉有电加热炉和燃气炉二种，任选一种。
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