The extrusion of silica - rich lava, the Rooiberg felsite, occurred on a grand scale.富于 硅氧 的岩流及罗依山霏细岩的喷出作用占据了广大面积.The ore bodies are confined to Yanshanian metamorphosed rhyolite porphyry and felsite.矿体赋存在燕山期变质流纹斑岩、霏细岩中....
Fine shades of grey streaked his dark hair.他的黑发间有几丝白发。They were streaked with alternate bands of colour.它们都带有各种色彩相间的条纹。A meteorite streaked across the sky.一颗流星划过天空。Fine shades of grey streaked his dark hair...他的黑发间有几丝白发。...
半夜中,霍启因要小解,便将英莲放在一家门槛上坐着.Towards midnight Huo Qi set the little girl down on a doorstep roundcorner to urinate.身后传来了嘲弄声,其他的人就在他们刚刚睡的地方小解.Behind him he heard jeers. The other pullers were urinating right where they had sl...
Gunpowder was used in China as far back as the 11 th century.远在公元11世纪,中国已使用火药.A smell of gunpowder penetrated the woods.森林中弥漫着火药味.Gunpowder was introduced into Europe during the first half of the 14 th century.在14世纪上半叶,火...
恒温器可用来调节室内温度.Thermostats can be used to regulate the temperature of a room.有种恒温器就是一根金属带,它受热时弯曲.One kind of thermostat is a strip of metal while bends when it gets hot.铸焊模具应达到所要求的温度而通常用恒温器控制.Also the machine mold is up to...