The little boy enjoys making battleship models.这个小男孩喜欢做战舰模型.A new battleship was launched from a shipyard.一艘新战舰从船坞下水.They moved two destroyers into the area to counter the threat from the enemy battleship.他们开了两艘驱逐舰进入这个地区...
评定了氧弹热量计 、 示差扫描热量计、水流型气体热量计的测量不确定度,并分析了各不确定度分量的来源.The uncertainty of measurment to oxygen bomb calorimeter, differential scanning calorimeter water gas - flow calorimeter were evaluated.以手动水流 式 热量计为基础,建立了LPG热值的测量系统.Based...