Melt remaining chocolate in the top of a double boiler over medium heat.
剩下的巧克力融化顶部双重中等以上锅炉热。
2
Calculation and comparisons show that the error caused by the assumption of concurrent temperatures of working medium and heated surfaces in boiler dynamic models is not negligible.
通过计算和比较表明，在锅炉动态模型中假定工质温度与金属温度同步变化所引起的误差往往是不容忽视的。
3
Monotube boiler should be installed with medium high temperature alarming and water shortage protect device.