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- They experimented with new reagents and succeeded. "他们用新试剂做了试验,获得了成功。"
- An experimental research on auriferous high-sulfur copper ore flotation with a new reagent was carried out. 采用新药剂对某含金高硫铜矿石进行了系统浮选试验研究。
- A new reagent, dibromomethyl carboxyazo was synthesized and its colour reaction with barium was studied. 研究了钡的新显色剂二溴对甲偶氮羧的合成及其与钡显色反应的条件。
- In this paper,the development of using bi azo chromotropic acids as chromogenic reagents in RE determination was reviewed,especially the new reagents introduced after 1990. 介绍1990年以来变色酸双偶氮显色剂在稀土分析中应用的进展,着重介绍了新出现的显色剂。
- A new reagent, trimethylammonium chlorochromate adsorbed on alumina , was described as a convenient reagent for the oxidation of alcohols and benzoins . 本文报道了氯铬酸三甲铵/氧化铝的制备方法及其对醇和苯偶姻类化合物的氧化反应。
- A method for the synthesis of new reagent 2,3,7 trihydroxy 9 (2,4 dihydroxy) phenylfluorone (DHPF) was introduced with hydroquinone and 2,4 dihydroxybenzaldehyde as basic material. 以对苯二酚、2,4-二羟基苯甲醛为基本原料,报道了新显色剂2,3,7-三羟基-9-(2,4-二羟基)苯基荧光酮(DHPF)的合成方法。
- A new reagent for the determination of acidic phosphatase was synthesized, its structure was characterized by elemental analysis, IR, spectrum and TGDTA. The mechanism of formation was discussed. 合成了一种测定酶的新试剂荧光素单磷酸酯镁,通过元素分析、红外、热谱确证了其结构,并探讨了其生成机理。
- Keywords Flotation;New reagent;Frother; 浮选;新药剂;起泡剂;
- I got a new coat in that store last week. 上礼拜我在那家店买了一件新外套。
- The new chairman will shake up the company. 新任董事长将改组这家公司。
- They all cooed over the new baby. 他们对着新生婴儿爱抚地轻声细语。
- She read me a few extracts from her own new novel. 她把她自己的新小说念了几段给我听。
- She is pounding out a new rune on the piano. 他正在钢琴上弹奏一支新曲。
- TOW NEW REAGENTS FOR DISTINCTION BETWEEN ALDEHYDES AND KETONES 两个新的醛酮鉴别试剂
- That new barman at the club really turns me on. 俱乐部那位新来的酒吧男招待员真让我有兴趣。
- The new comer applied his mind to the job. 新来的职员工作专心致志。
- That new shopping centre is a real eyesore. 那个新的购物中心真是难看极了。
- A new upsurge in construction is in the making. 一个建设的新高潮正在兴起。
- The judgment set a new precedent. 那次判决树立了一个新的判例。
- A rival company has set afloat a new credit scheme. 一家竞争的公司已开始实施一项新的信用购物方案。