manganese peroxide二氧化锰The sample was molten and decomposed with sodium peroxide , leached and acidified hot water and - volumed.试样以过氧化钠熔融分解,热水浸取、酸化,定容.Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化...
a woman with peroxide blonde hair漂染金发的女子Explain why barium forms peroxide but beryllium does not.解释为什么钡能形成过氧化物而铍则不能。It has studied the action of hydrogen peroxide on nitrous acid.它研究了过氧化氢对亚硝酸的作用....
Made compendious introduction to the aluminum foil industry of Germany and France.对德国与法国的铝箔工业作了扼要的介绍.My professor referred me to the book Compendious System of Astronomy.我的教授让我参考《天文学系统概论》这本书.Index option should follow 4 ...
那一周中的大事就是那场大暴风雪.The important event of the week was the big storm.11月20日周一,布里奇确定不参加周中的比赛了.Mon November 20 th Bridge is definitely out of the European trip....
Mainline feminism was arguing for the inherent beauty of the natural woman.主流女权主义思想倡导女性天生的自然美。He and my mom were arguing every night, hour after hour.他和我妈妈每天晚上都吵个不停。They were still arguing; I could hear them down the roa...