NEW DELHI, March 7 (Reuters) - India has signed a $248 million contract with Russian state arms exporter Rosoboronexport to acquire more powerful engines for its Soviet-era battle tanks ...

欢迎您选用我公司生产的PW206智能数字压力仪表。该说明书详细地介绍了PW206的性能特点、参数指标、使用方法、维护保养等内容。使用前仔细阅读本说明书，以便您正确使用。 PW206是高性能智能压力测量控制仪表。该表吸收了国内外同类仪表的优点，可与同类 ...

The world’s first oblique detonation engine (ODE) powered by standard aviation kerosene has been successfully tested by Chinese scientists, marking a potential game-changer in hypersonic ...