Formed heads for steel pressure vessels is the first complete and unite standard about head plate.
本标准是我国压力容器第一部完整和统一的封头标准。
They formed up in battle line, infantry in the center, cavalry on the wings, artillery to the rear firing over their heads.
他们排成作战队形,步兵在中央,骑兵在两翼,炮兵在后面朝他们头顶上方开火。
Now she heads a newly formed ministry of foreign trade.
目前,她已经成立了一个新的外贸部。
应用推荐