In the aerospace industry metal parts are often machined from a solid billet of costly high-grade titanium .
航天制造业中往往从昂贵的高档钛的固态坯料中加工金属零件。
Europe 's biggest defense contractor and its biggest aerospace firm are in advance talks to merge .
欧洲最大的防务承包商及最大的航空公司的合并谈判已进入高级阶段。
Singer says not a single western aerospace company has a manned combat aircraft in research and development .
彼得辛格说没有一家西方航空公司能够单独完成有人战斗机的研发工作。
The aerospace argument for new biofuels takes full account of america 's ethanol disaster in the 2000s .
航空航天业对新生物燃料的观点完全是由于受到20世纪美国的乙醇灾难的影响。
The german aerospace centre has tested this idea in an aircraft using a fuel cell to power two electric motors built into the hub of an aircraft nose wheel .
Virgin galactic is so far the only company committed to operating from the spaceport , but companies including armadillo aerospace and lockheed martin have carried out testing there .
The japan aerospace exploration agency ( jaxa ) hopes that the ambitious plans will help ease the country 's energy problems as well as providing a solution for global warming .