As an important octane booster in unleaded gasoline, the need for ethers becomes more and more.
醚类作为重要的高辛烷值调和组分,需求量日益增加,醚化催化剂的研究也越来越活跃。
NASA plans to launch an unmanned Orion aboard a Delta IV booster in 2014 as part of a flight test.
NASA计划在2014年发射无人乘坐德尔塔iv助推器猎户座作为一个试飞的一部分。
Standing at 327 feet (100 meters), Ares I-X is a towering rocket? And currently the world? S tallest booster in service.
战神i - X高高耸立,有327英尺(100米)高——也是世界上最高的在役的推进器。
应用推荐