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...
Only three windows had been glassed.只有三个窗镶上了玻璃.The clinking of glassed traces its roots to medieval days.喝酒时碰杯的传统可以追溯到中世纪.The archway between the two buildings had been glassed over.两座建筑物之间的拱道已经覆盖上了玻璃....
Isotopic scans demonstrate a nonfunctioning ( cold ) nodule that does not concentrate radioiodine.同位素扫描显示无功能 ( 冷 ) 节,它不能浓集射碘.Type C closely resembles nonfunctioning pituitary adenomas with bitemporal hemianopsia and hypo...
The film concludes with the heroine's death.影片以女主角之死结束.That concludes our programme for this transmission.这次播音到此结束.This concludes our survey of protection of natural areas.这就结束了我们对保护自然区域的评估....
灯塔的光束在渐浓的暮色中清晰可见。The lighthouse beam was quite distinct in the gathering dusk.他们驱车返回华灯初上的希灵汉姆时，暮色渐浓。Dusk was deepening as they drove back to the lights of Shillingham.暮色渐浓，变成了漆黑一片。The twilight had turned to a deep blackn...