In production, the main difficulty is the manufacture of the evaporator spiral wall especially it's transition section.

此锅炉制造中最大的难点在于螺旋水冷壁，特别是其中过渡段的制造。

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At the instant when heat pipe begins running, the evaporator and adiabatic section temperature have an unchanged region, while condenser temperature increases greatly.

当热管起动运行的一瞬间，加热段与绝热段温度出现一不变的温度段，冷凝段出现一大幅度的温度跳跃。

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