Early Yanshanian intrusions are mainly adamellite, biotite K feldspar granite with small amount of granodiorite.燕山早期侵入岩以二长花岗岩 、 黑云钾长花岗岩为主,其次为花岗闪长岩.Tongling quartz - vein type deposit lies in south - east Rushan , Shandon...
外面车行道上传来刺耳的刹车声。There was a scream of brakes from the carriageway outside.为避免相撞而刹车时，他听到了轮胎与地面刺耳的摩擦声。He heard tires squeal as the car braked to avoid a collision.刹车踩得越用力，车子减速越猛。The harder the brake pedal is pressed, the gr...