The significance and promising prospect of plant hair dyes were forecasted.提出了发展植物型染发剂的重要意义和广阔前景.Therefore, based on the field data obtained, stope stability can be forecasted.在此基础上, 可以根据获得的现场资料, 预测采场的稳定性.Expert has fore...
electric megaphone喊话器Somewhere a voice is loud a megaphone.远处什么地方的扩音器里传来响亮的声音.A megaphone boomed out, "This is the police."扩音器响了起来：“我们是警察。”transistor megaphone晶体管扩音器He hawks with a megaphone, saving a lot of effort.他用喇叭筒...
This paper uses the dispersancy index K stand for the dispersancy of sliding surface of block.用分散性指标K表示块体滑动面的分散性,由此分析滑动摩擦圆的出现概率,并表示在结构面赤平投影图上.Parameter characterizes the dispersancy assigned to the measured value reasona...
The gramophone had been eclipsed by new technology such as the compact disc.激光唱片等新技术使留声机黯然失色。a gramophone record唱片The telephone and the gramophone were contemporary.电话和留声机是同一时代的产物.They danced to an ancient gramophone.他们随...