Gorbachev and Raisa descended together from their plane at Heathrow Airport.戈尔巴乔夫和赖沙一起从停在希恩罗机场的飞机上走下来.Gorbachev failed to keep the component parts of the Soviet Union together...戈尔巴乔夫没能把苏联各成员国团结在一起。In 1988 Mikhail Gorbac...
从狭义来说, 换热器是一种容器.A heat exchanger, in a narrow sense, is a vessel.高温断流器切断给通往热器的电源.A high - temperature cut - out isolates power supply to the heater.最终结果是从冷蓄热器吸取了热.The net result is an absorption of heat from the cold res...