My products mainly include vanadium pentoxide, Ferrovanadium, vanadate and coatings. 我公司经销的产品主要有五氧化二钒、钒铁合金钒酸盐和涂料。
Mineral exploration made important progress in .coal, uranium, iron, gold, silver, copper, nickel, zinc, lead, antimony, tungsten, molybdenum, vanadium, kainite and characteristic non-metal. 矿产勘查在煤、铀、铁、金、银、铜、镍、铅、锌、锑、钨、钼、钒、钾盐及特色非金属矿产等方面取得重要进展。
Cyanopyridine,intermediate of rimifon, was synthesized from 4-picoline using vanadium oxide as a catalyst in a fixed-bed reactor, reached 99% conversion of 4-picoline, 88% selectivity and 87. 以4甲基吡啶为原料,在固定床反应器中通过含氧化钒的催化剂发生气固相接触氨氧化反应制备雷米封中间体4氰基吡啶,4甲基吡啶的转化率为99%,4氰基吡啶的选择性为88%,收率为87。
So remember: vanadium five, and I'm gonna put in here a glug of vanadium five.
所以请记住:钒五,我要在这里放一口钒五。
趣味化学实验:Periodic Videos
And the blue colour, I happen to know, is vanadium four.
蓝色,我碰巧知道, 是四钒。
趣味化学实验:Periodic Videos
We've gone from vanadium five, to four, to three.
我们已经从钒五, 到四,再到三。
经济学人 Science and technology
They are the alchemical crucibles in which nuclear reactions create things like cobalt, titanium, vanadium and zinc.
它们是炼金坩埚,核反应在其中产生钴、钛、钒和锌等物质。
科学60秒-科学美国人 2023年4月合集
There are microbes that can breathe palladium and copper and nickel and antimony and vanadium and selenium and all these things. And arsenic.
有一些微生物可以呼吸钯、铜、镍、锑、钒、硒和所有这些东西。还有砷。
SciShow 合集
A mineral called fingerite, for instance, forms from copper, oxygen, and vanadium -- an element that’s relatively rare in minerals -- and it dissolves in water .
Vanadium is a chemical element with symbol V and atomic number 23. It is a hard, silvery grey, ductile and malleable transition metal. The element is found almost exclusively in chemically combined form in nature, but once isolated artificially, the formation of an oxide layer stabilizes the free metal somewhat against further oxidation.