查询词典 di-phthalate

Two kinds of di aniline derivative s connected with oxamethylene bridge or azamethylene bridge were synthesizied by condensation of o nitrophenol and ethylene dibromide (1,4 dibromobutane)or 4 chloro 3,5 dinitrobenzotyifluoride and ethylene diamine(1,6 hexandiamine)and consequent reduction.

由邻硝基苯酚和二溴乙烷以及由4－氯－3， 5－二硝基三氟甲苯和乙二胺为原料通过桥接、还原合成两类由氧亚甲基或氮亚甲基桥联的双苯胺衍生物。

54 2 Have been synthesized by the reaction of di(p-chlorbenzyl)tin dichloride with sodium dithiocarbamate .

利用二二氯化锡和吗啉氨荒酸钠、N， N-二乙基氨荒酸钠反应，合成了二锡双吗啉氨荒酸酯C24H28Cl2N2O2S4Sn Mr = 694。

In our research on study chemical reaction of active methylene compounds and brom-acetophenone. Because of brom-acetophenone is compound that contain carbonyl and halogen ,which will take place electrophilic substitution and nucleophilic addition. When active methylene compounds are ethyl acetoacetate and β-diketone, controlling reaction condition, we have found that mono-substitution's production and di-substitution's. production is isolated; active methylene compounds are acetoacetanilide and acetoacetanilide derivate, pyrrolidin-2-one derivants were obtained by substitution and close-ring reaction .but there is no report about it.

本文是让活泼亚甲基类化合物与溴代苯乙酮发生化学反应，由于溴代苯乙酮是含有羰基的卤代烃结构，它可以发生亲电取代和亲核加成反应，当活泼亚甲基类化合物为乙酰乙酸乙酯和β-二酮时，控制反应条件可以发生单取代和双取代两种产物；当活泼亚甲基类化合物为乙酰乙酰芳胺类化合物来反应时，溴代苯乙酮中的羰基与氨基会发生分子内的关环反应生成吡咯烷-2-酮衍生物，这在以前的研究中是没有发现的。

Absolute freedom; an absolute dimwit ; a downright lie; out-and-out mayhem; an out-and-out lie; a rank outsider; many right-down vices; got the job through sheer persistence; sheer stupi di ty.

彻底的自由；彻头彻尾的傻瓜；彻底的谎言；完完全全的故意伤害；彻底的谎言；十足的失败者；许多彻底的堕落；完全通过坚持才得到了这份工作；十足的愚蠢。

Tu is a digraph denoted as DHG with nodes corresponding to the data segments of P and a set of directed arcs joining these nodes such that ,for i≠j,Di→Dj Iff there exist tTu s.t.

Dn.A数据库的P wrtTu层次图划分为华赋性与节点对应的数据段P和直接参与了这些节点的弧集，这样，因为我≠，邸→当且仅当存在tεTus.t。

Adam warner said,' I'm a member of the Disciplinary Committee of the New York Bar Association, Miss Parker. District Attorney Robert Di Silva and Judge Lawrence Waldman have requested the Appellate Division to begin disbarment proceedings against you.

"我是纽约律师协会纪律委员会的成员，"亚当·沃纳开口了，"帕克女士，地区检察官罗伯特·迪·西尔瓦和劳伦斯·沃特曼法官已向上诉法院提出要求：开始实施取消你的律师资格的法律程序。"

The extruder is a new equipment applied to construct ing multi-stage di sk pile hole by extruding and expanding.The disk pile constructed by the extrud er is a variable-cross section pile.

挤扩支盘成型机是用于挤扩多支盘砼灌注桩施工的一种新型设备，其成桩机理是靠高压能量的油泵推动油缸活塞运动而工作的。

Please do not take milk,sweet drinks or high fat liquid to avoid abdominal distension or di-arrhea.

但请不要马上进牛奶、甜的及含油量高的流质，以免胀气与腹泻。

The Atlanta basis protects skin centre expert Ailisen telling us: You remember again warming up Di or are those used to hold small tomato ketchup dixie cup with other snacketeria inside?

亚特兰大基础护肤中心专家爱莉森告诉我们：你还记得再温狄或者其他快餐店里面那些用来装番茄酱的小纸杯吗？

I di dn' t know you had a brother.

我还不知道你有一个哥哥。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。