Through the separation, lignosulfonate with narrow molecular weight distribution was obtained and then chemically modified.木质素磺酸盐是一种常见的普通减水剂, 其分子量分布较宽,从而影响减水剂性能.The graft mechanism of lignosulfonate and acrylic acid was ...
The graft mechanism of lignosulfonate and acrylic acid was studied in this paper.本文研究了木素磺酸盐和丙烯酸单体的接枝共聚机理.Through the separation, lignosulfonate with narrow molecular weight distribution was obtained and then chemically m...
"He's been arrested for theft and burglary." — "Good grief!"“他因为偷窃和入室盗窃而被逮捕了。”——“我的天哪！”We all felt as if we were intruding on his private grief.我们都觉得似乎触及到了他内心的伤痛。Nothing can prepare you for the shock and grief of wi...
Do not be Cypriot food slowly flatly flatly eat.千万不要塞得满嘴的食物,慢慢一口一口吃.“He is dead,” said Alice flatly.“他死了”,艾丽斯冷漠地说道。I could use some money, Sarah told him flatly.萨拉态度坚决地告诉他，我可以用一部分钱。‘Alcohol doesn’t solve problems,’ she s...
Objective : To analyse the content of berberine hydrochloride in Zhibai Dihuang Wan.目的: 测定知柏地黄丸中盐酸小檗碱的含量.Objective : To optimize the extraction technology of berberine berberis.目的: 优选三颗针中小檗碱的提取工艺.RESULTS 63 % of baicalei...
The barriers are lethal to fish trying to swim upstream.这些障碍物对于想要往上游游动的鱼儿来说是致命的。Execution by lethal injection is scheduled for July 30th.定于7月30日执行注射死刑。High-powered cars are lethal weapons in the hands of inexperienced dr...