研究了用无溶剂重结晶法提纯2,6二氯甲苯.Purification of 2,6 dichlorotoluene by the recrystallization method without solvent was studied.以对氯甲苯为原料,经氯化、水解反应合成对氯苯甲酰氯,总收率. 6%.%.The total yield and 4 - chlorohenzoyl chloride. 6 % and. %.研究炭管采集空气...
他说得很慢,每个词之间都有停顿。He talks quite slowly and spaces his words out.离开时,她在门口停顿了一下。On leaving, she paused for a moment at the door.他停顿了一下,歪着头,好像是在听。He paused and cocked his head as if listening....
The hospital bed is no longer occupied by his wife...他的妻子不在这张病床上了。...territories that were occupied in 1967, that is to say, in the West Bank and Gaza.1967年被占的领土,也就是约旦河西岸和加沙地带的被占领土30 per cent of psychiatric hospital beds...
Highly skilled Sharpshooter with scoped M 1903 Rifle, effective against all Infantry. Can use camouflage ability.102152配备著有瞄准镜的M1903步枪的高度熟练神射手, 可以有效地对付各种步兵. 可以使用伪装特殊能力....a .22 calibre rifle.口径为0.22英寸的步枪...a short-barrel...
块度大,玉料厚实, 琢制山子件, 观赏效果佳.Fragmentation , Liu Yu - thick cut pieces of the system - Hill, excellent ornamental effect.给出了不同煤矸块度条件下的放煤步距选取原则.The select principle of drawing interval was given for different coal - gangue frag...