他让他妹妹奏曼陀林作伴奏He had his sister playing the mandolin [ 9 mAndE 5 lin as accompaniment.她演奏曼陀林非常出色.She plays the mandolin superlativelywell.他15日)调整了旧曼陀林,起到了几个音符.He 15 tuned up the old mandolin and a few notes....
Local administrations grouped in a joint salvage effort.当地各管理部门联合起来协力挽救.Psychoactive substances are commonly grouped toare stimulants , depressants, or hallucinogens.刺激神经类物质通常分为兴奋剂 、 静剂和幻觉剂.The targets of these foreign (...
投石机: 古代投掷物体之发射器,用作发射长箭或重型球状物.Ballista: Ancient missile launcher designed to hurl long arrows or heavy Balls.最大之投石机可相当准确地发射27公斤重物到约450 公尺 处的目标.The largest could accurately hurl 60 - lb ( 27 - kg ) weights up to about 500 ...
Processes which can lead to cathodic protection, phosphating, pickling, and electroplating.阴极保护, 磷化反应, 酸洗和电镀都会造成氢脆变.Several test methods of performances of the cathodic electrophoresis paints are introduced.介绍了阴极电泳漆的几种性能...