在此条件下合成的产物中活性物含量可达40%.Under the optimum conditions, the content of active substance could reach 40 %.其固体物的质量分数为25%,活性物质量分数为18%.Its solid was 25 % and the activating agent was 18 %.对以氟化钠和一氟磷酸钠为基础的 抗 龋活性物配方的有效性给予了肯定.The ef...
这艘船的注册编号刻在前舱的左舷上。Her official number is carved on the port side of the forecabin.前舱有6英尺高的净空，也有足够的空间供人站立和穿衣服。The forecabin, with 6ft head-room, also has plenty of room to stand and get dressed.他们正在把火药和武器搬进前舱.They are putt...