extractant是什么意思？

The selectivity of extractant is high and only Au, Pd , Hg ete. are extracted.该萃取剂选择性高,它仅萃取Au 、 Pd和Hg等几种元素.An extractant - screening method with a vapor - liquid equilibrium apparatus in the extractive distillation was i...

extractant的音标：extractant的英式发音音标为：[ɪks'træktənt]extractant的美式发音音标为：[ɪks'træktənt]...

brag的近义词有：boast, brag, crow, pride。下面这些动词均含有"自夸，吹嘘"的含义：boast：普通用词，指对自己所做的事，自己的长处、财富以及家庭等的夸耀，常含言过其实的意味。brag：非正式用词，其夸耀和吹嘘意味强于boast，到了过分夸大，有时令人讨厌的地步。crow：多指大声吵嚷地吹嘘，夸耀自己做某事比他人做得好。pride：与boast的意义较接近，指炫耀、夸口，自鸣得意，常与反身代词连用。...

n.宏观世界，（结构复杂的）整体...

I didn't mean any offence. It was a flippant, off-the-cuff remark...我并无冒犯之意。那只是随口说出的一句轻率话。Make off the cuff remarks that are often seen as personal prods.做出非正规的评价,让人不能接受.She hoped they wouldn't cuff her hands b...

vt.& vi.侵蚀，腐蚀vi.逐渐毁坏，削弱，损害...

James arrived in midafternoon with former teammate Damon Jones.下午三点钟,詹姆斯和其前队友达蒙.琼斯一道而来.The tallest teammate held a paper roll made by his teammates.参加者每人卷一张报纸,连接在一起,再由队中最高的组员拿著.Your teammate has distressed us all, he wil...

[人名] [英格兰人、苏格兰人姓氏] 林赛住所名称，来源于不列颠姓名Lincoln+古英语，含义是“岛”(island)，[人名] [英格兰人姓氏] 林赛住所名称，来源于古英语，含义是“Lelli岛”(island of Lelli)，[人名] [爱尔兰姓氏] 林赛一些盖尔语姓氏的英语形式，[地名] [加拿大、美国] 林赛...

movement的音标：movement的英式发音音标为：['mu:vmənt]movement的美式发音音标为：['muvmənt]...

Tramp, tramp , tramp , columns of militiamen marched by in perfect step.一队队民兵欻欻地走过去,非常整齐.The aggressor troops marched into the neighbouring country on the pretext of searching for their missing soldier.侵略军开进一个邻国,借口寻找他们失踪...

表壳虫目...

afflicted的音标：...

Alastair: A new, young pianist from the Czech Republic called Irina Dubcek.阿拉斯泰: 是个刚出道的年轻钢琴家,来自捷克共和国,叫伊琳娜.杜布切克.Alastair has a bad back so we have a hard bed.阿拉斯泰尔背部有毛病，所以我们睡硬板床。Alastair: I went to a piano recital yesterd...

caravaneer的音标：caravaneer的英式发音音标为：[ˌkærəvæ'nɪə]caravaneer的美式发音音标为：[ˌkærəvæ'nɪr]...

n.青少年adj.青少年的；青春期的，未成熟的...

n.千伦琴...

interlocks的音标：interlocks的英式发音音标为：[ɪntə(:)'lɒks]interlocks的美式发音音标为：[ɪntə()'lɒks]...