本期主題【液體燃料運載火箭】
Liquid-fueled carrier rocket
On June 25, the Long March 7 rocket was successfully launched in China’s Hainan province. The newest member of the Long March family was designed as a liquid-fueled carrier rocket, powered by *liquefied oxygen and *kerosene. Compared to earlier rockets, the Long March 7 is expected to be cleaner and stronger. Its fuels only produce carbon dioxide and water when they burn.
6月25日，長征七號運載火箭在海南文昌航天發(fā)射場點火升空。作為“長征家族”的新成員，長征七號是液體燃料運載火箭，采用了液氧煤油發(fā)動機等新技術。和此前的火箭相比，長征七號更清潔，動力也更強。在燃料燃燒時，只產(chǎn)生二氧化碳和水。
馬上學：液體燃料運載火箭使用的是液體火箭發(fā)動機(liquid propellant rocket engine)，它采用液體燃料和氧化劑(oxidizing agent)作為能源產(chǎn)生推力。
Liquid-fueled carrier rocket
On June 25, the Long March 7 rocket was successfully launched in China’s Hainan province. The newest member of the Long March family was designed as a liquid-fueled carrier rocket, powered by *liquefied oxygen and *kerosene. Compared to earlier rockets, the Long March 7 is expected to be cleaner and stronger. Its fuels only produce carbon dioxide and water when they burn.
6月25日，長征七號運載火箭在海南文昌航天發(fā)射場點火升空。作為“長征家族”的新成員，長征七號是液體燃料運載火箭，采用了液氧煤油發(fā)動機等新技術。和此前的火箭相比，長征七號更清潔，動力也更強。在燃料燃燒時，只產(chǎn)生二氧化碳和水。
馬上學：液體燃料運載火箭使用的是液體火箭發(fā)動機(liquid propellant rocket engine)，它采用液體燃料和氧化劑(oxidizing agent)作為能源產(chǎn)生推力。