钋是高放射性的元素,金属.Polonium is a highly radioactive element and a metalloid.两个遗留有钋的星球被一些不明原因突然破坏.Two old plutonium disposal plants damaged at once by some unestablished reason.钋的同位素在自然界中的确存在,但是相当罕见.The isotope does occur in na...
This argument is untenable from an intellectual, moral and practical standpoint.从智识、道德和现实的角度来看，这一论点是站不住脚的。From my standpoint, you know, this thing is just ridiculous.你要知道，依我看，这事简直太荒唐了。He will never be bullied into any ch...
Naomi used to go to church in Granville every Sunday.娜奥米以前每个星期天都去格兰维尔的教堂做礼拜。Stanley Park, English Bay, Gastown , Granville Island, and Wreck Beach.像史坦利公园 、 格兰湾 、 士镇 、 兰佛岛和沉船滩.Granville: That's why we're taking ...
通过环氧化和氧化就得到外消旋的含十八个碳的昆虫返动激素.Epoxidation and oxidation gave the racemic C 18 - juvenile hormone.发现旋光基质有外消旋作用.Racemization is found with optically active substrates.外消旋体是不旋光的.The racemate is optically inactive....
He enraged the government by renouncing the agreement.他否认那项协议，从而激怒了政府。He was enraged by news of plans to demolish the pub...看到计划拆除酒馆的新闻，他非常愤怒。Finally, Smith showed up, enraged to the point of incoherence -- and not witho...