Fire hydrant system and sprinkling system should be connected by galvanized steel pipe of threaded connection.消火栓系统与喷淋系统管材采用热镀锌钢管丝扣连接.Galvanized by the authority in her voice, Pork approached the wagon and fumbled at the...
他谦恭地同我们打了招呼.He greeted us with civility.说到这里,考利昂老头子激动而谦恭地表示: “ 这就是我的全部要求. ”Corleone gestured expressively, submissively , with his hands. " That is all I want. "他谦恭地低下了头.He humbly lowered his head....
云仙山今天一直在向外喷涌火山灰、气体和火山岩。Mount Unzen has been spewing out volcanic ash, gas, and rock today.玄武岩是最普通的火山岩.Basalt is the commonest volcanic rock.火山岩在正常情况下有强的磁化率.Volanic rocks have high susceptibilities under normal conditions...