The products were analyzed simultaneously using ethyl benzoate ( EB ) as internal standard.以苯甲酸乙 酯 为内标物,一次性同时分析了塔釜产物中各组分含量.The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲...
The crude, wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol.将粗制 、 湿的苯甲酸酯 ( 118克 ) 回流着溶于1400毫升甲醇中.The crude, wet benzoate ( 118 grams ) was disslolved with reflux in 1,400 ml methanol.将粗制 、 湿的苯甲...
Therefore, CNOOC's proposed drilling fracturing with reasonable sanding recovery method.为此, 中海油提出了钻井压裂适度出砂的开采方式.The surface of the slice is smoothed by sanding.把该切片的表面用沙纸擦光.Ma inly used for sanding the products such...