The cheapest option could be to use giant mid-air refuelling aircraft, such as the US air force's KC-10 Extender, filled with sulphur dioxide or hydrogen sulphide gas.
最便宜的方案是使用巨型空中加油飞机——例如美国空军的KC-10“补充者”空中加油机（KC-10Extender），装满二氧化硫和硫化氢气体。
GMT, May 17, 2010 Airbus Military has for the first time demonstrated in flight "buddy" refuelling between two A330 MRTT aircraft.
[据防务专家网2010年05月17日报道]空客已经第一次演示了在两架A330MRTT飞机之间进行加油的能力。
They had special armour on the inside of the aircraft. They had forward-looking infrared radar, avoidance radar, air-to-air refuelling probes.
直升机内部还有特殊的装甲、前视红外雷达、障碍回避雷达、空中加油探头。
The aircraft can be fitted with a fixed aerial refuelling probe on the starboard side of the cockpit.
战机座舱的右舷可以安装固定的空中加油受油头。
The combat radius of the aircraft was estimated to be 550 ~ 600km, but it could be extended to over 1, 000km once the aircraft is added with the aerial refuelling capability.
战机的作战半径大约在550 ~ 600公里，但一旦战机增加了空中加油系统这个数字就会扩展到1000公里。
This operation was supported by VC10 and Tristar air-to-air refuelling aircraft as well as E3D Sentry and Sentinel surveillance aircraft.
“本次行动得到了VC10战机和“三星”空中加油机的支持，也得到了“E3D型”侦察预警机的支持。”
The aircraft has the in-flight refuelling capability using its fixed probe.
飞机使用它的固定探头具有空中加油能力。
The aircraft has the in-flight refuelling capability using its fixed probe.
飞机使用它的固定探头具有空中加油能力。
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