The operational principle of digital readout instrument angle measurement is introduced based on the round inductosyn.介绍了圆感应同步器数显表测角系统的工作原理,以及在静态和动态测角方法....
他被派往厄立特里亚侦察敌军位置。He was sent to Eritrea to reconnoitre the enemy position.敌军对该城发起连串炮轰。Enemy forces lobbed a series of artillery shells onto the city.他在空中搜寻敌军轰炸机。He searched the skies for enemy bombers....
褐煤油是从褐煤中得来的防腐油.Lignite oil is creosote derived from lignite tar.因此, 传统的煤层气含量确定方法不适用于褐煤.Therefore, the conventional gas content measurement is invalid to lignite.大雁二矿煤种为褐煤, 属易自燃发火煤层.Coal Mine, its coal seam is easily spon...