[有化] diethylamine ；

[例句] 用L - 苯丙氨酸,L - 缬氨酸,L - 亮氨酸制得相应的N- 羧酸内酸酐,并分别与二乙胺,叔丁胺, 异丙胺,正丁胺反应. L - Phenylalanine, L - valine and L - leucine were used to prepare the corresponding NCAs.

[例句] 目的观察双氯芬酸二乙胺盐凝胶经皮用药的安全性. Objective To observe the safety of diclofenac diethylamine salt gel after external use.

dimethylamine ；

[例句] 以低含氢硅油 、 不饱和聚醚 、 一氯乙酸和二甲胺为原料, 制备得阳离子有机硅油. The silicone quaternary was synthesized reaction of - H silicone, unsaturated - ether, chloroacetic acid, dimethylamine.

[例句] 双长链烷基甲基叔胺是脂肪醇和二甲胺催化胺化反应的主要 副产物. Dialkylmethylamines are the main by - products in t he catalytic of fatty alcohols.

twelfth ；

[例句] 下周,他们将演出 " 第十二夜 ". They are going to play " Twelfth Night " next week.

[例句] 第十二条进口货物许可证的有效期限为一年. Article 12 The term of validity of an import licence shall be one year.

twenty，score ；

[例句] 我二十岁前后那几年过得真苦啊。 My late teens and early twenties were really rough years.

[例句] 显然，莫扎特在二十几岁到三十刚出头时，身体非常好。 Mozart clearly enjoyed good health throughout his twenties and early thirties.

[机] carbanilide，diphenylurea ；

[例句] 这一组中包括黄酮类化合物, 二苯甲酮 、 一些香豆素 、 木质素 、 缩合单宁和芪. The group includes flavonoids, benzophenones, some coumarins, lignans, condensed tannins, and stilbenes.

[例句] 碳酸二苯酯表现典型的乙烯的酯类的效应. Diphenyl carbonate shows a typical vinyl ester effect.

bicentennial ；

[例句] 但是二百年后人们还会唱他们的歌 吗 ? But will people be playing their songs in two hundred years?

[例句] 作为学术上的一门学科, 经济学已经有了整整二百年的历史. As a scholarly discipline, economics is just two centuries old.

two-dimensional，bidimensional，dimetric，two dimensional，planar ；

[例句] 在二维的可视化及绘图应用中, 垂直和水平滚动非常普遍. In 2 D visualization and drawing applications, vertical and horizontal scrolling are common.

[例句] 在这个桌上, 可以演示二 维 的弹性和非弹性碰撞. Two - dimensional collisions, both elastic and inelastic, may be demonstrated on this table.

[医] bilaminar ；

[例句] 这是一间二层的房间, 它面朝大街. It is a room on the second floor, looking over the street.

[例句] 我想要一间在二层的单人间从周一到周三入住. I'd like a single room on the floor from Monday to Wednesday.

planar，bis ；

[例句] 临近中场休息时，哈迪曼差点梅开二度。 As half time neared, Hardyman almost scored twice.

[例句] 白天最高气温将只有零上二度。 The highest temperature during the day will be two degrees centigrade.

the two，both；

[例句] 将会实施公共工程项目还是社区服务项目,还是二者都有? Will there be public-works programmes, or community service, or both?

[例句] 虽然二者有一些相似之处，但却风格迥异。 While both share some similarities they are stylistically very different.

dialkylene ；

[例句] 以氟化钾为催化剂, 催化十二烯基琥珀酸酐(DDSA)缩合成螺双内酯化合物. With potassium fluoride as catalyst, spironolactone compound was synthesized from DDSA.

[例句] 研究了双环戊二烯基铁作为燃料添加剂的应用. The application of ferrocene as fuel additive is studied.

[化] bisamine，dien，diethylenetriamine，[医] diamine ；

[例句] 胺和二胺是特别有效的. Amines and diamines are particularly effective.

[例句] 探讨了二 ( 三氯甲基 ) 碳酸酯 ( BTC)和1,5萘二胺 ( NDA ) 合成1,5萘二异氰酸酯(NDI ) 的反应. The reaction between 1,5 - naphthalenediamine ( NDA ) and bis ( trichloromethyl ) carbonate ( BTC ) was studied.

[医] diamido- ；

[例句] 本文报道2, 4-二氨基 -6- 取代哌哗嗪基喹唑啉衍生物的合成及其抗疟活性. A series of 2, 4 - diamino - 6 - substituted piperazine quinazolines was synthesized.

[例句] 本公司主要经营各种硫化染料,硫化染料, 2.4-二氨基甲苯等等. Our company mainly engaged in all kinds of Sulfur Dyes Sulfur Dyes, 2.4 - diaminotoluene and so on.

diazole ；

[例句] 摘要合成了一种新型润滑脂添加剂噻二唑衍生物. A novel grease additive derivative of thiadiazole was synthesized.

[例句] 噻唑锌是噻二唑类有机锌杀菌剂,对柑桔溃疡病有较好的防治效果. Zn thiazole is a thiazole organic zinc fungicide with highly activity on citrus canker disease.

[机] dichlone ；

[例句] 乙烯和反式二氯乙烯在红外光谱的这个区域都无活性. Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region.

[例句] 这是冷却,滤出沉淀的二氯碘化铯. It is cool and filter the precipitated caesium dichloroiodide.

bidactyly，didactylism ；

[例句] 结论: 胆囊、二指肠瘘的超声表现具有一定的特征,有助于临床诊断. Conclusion: Characteristic ultrasonographic presentations are helpful for the diagnosis of cholecystoduodenal fistula.

[例句] 目的: 探讨胆囊、二指肠瘘超声图表现的病理基础. Purpose : To explore the pathological basis of ultrasonographic presentations in cholecystoduodenal fistula.

[有化] diethylbenzene ；

[例句] MgO改性提高对二乙苯选择性最为明显. Silylation, P modification and MgO modification can improve p - DEB selectivity greatly.

[例句] 指出高效、节能的分子筛吸附分离法是分离二乙苯的最佳选择. The best choice for separating diethylbenzene is the adsorptive separation by zeolite adsorbents in high efficiency.

diethylester ；

[例句] 以二异丙胺 ( DIPA ) 、硫酸二乙酯 ( Et2SO4 ) 为原料合成N, N二异丙基乙基胺 ( DIPEA ). N, N - Diisopropylethylamine ( DIPEA ) was prepared from diisopropylamine ( DIPA ) and diethyl sulfate ( Et _ 2 SO _ 4 ).

[例句] 论述了高效液相色谱法测定马来酸二乙酯含量的方法. RP - HPLC absolute calibration curve method for the determination of Diethyl Maleate.

[化] diethylene glycol，diglycol ；

[例句] 去年, 二甘醇在巴拿马被错误地同止咳糖浆混在了一起. Last year, diethylene glycol was mistakenly mixed with cough syrup in Panama.

[例句] 采用二甘醇作为加合物的分解剂,得到了二元酸. Diacid has been got using diethylene glycol as decomposition agent of adduct.

[医]di-H，dihydro，dihydrogen ；

[例句] 介绍三聚磷酸二氢铝的性质 、 合成工艺及应用. The properties, synthesis process and application of aluminium dihydrogen tripolyphosphate are presented.

[例句] 磷酸二氢钾 、 硫酸铵提纯, 包装材料 、 化工产品 ( 不含化学危险品 ) 销售. Linsuanerqingjia, ammonium sulfate purification, packaging materials, chemical products ( excluding hazardous chemicals ) sales.