dimer，dimeric polymer，dimeric ；

[例句] 它们都以二聚物或四聚物状态存在. They may be present as dimers or tetramers.

[例句] 第三章运用相对论密度泛函计算系统研究了稀土元素同核二聚物的成键规律和变化趋势. In Chapter 3, bonding trends of homonulcear diatomic rare earth compounds have been studied.

[化] diphenylamine，N-phenylaniline ；

[例句] 间苯二酚和 2- 硝基二苯胺可用作安定剂. Resorcinol and 2 - nitrodiphenylamine may be used as stabilizers.

[例句] 研究了含二苯胺硝化棉的生物降解特性. Biodegradability of the nitrocellulose with diphenylamine was investigated in this paper.

[机] double，doubleness，duplation ；

[例句] 即所得的末角速度大于原来的二倍. That is, the angular velocity is more than doubled.

[例句] 接合形成的合子是部分二倍体,也叫做部分合子. The zygotes formed in conjugation are partial diploids or merozygotes.

duality ；

[例句] 学生: 先生, 你在设法说服前提的二元性. Student: Sir, you are working on the premise of duality.

[例句] 涅盘是超越二元性和相对性的. Nirvana is beyond all terms of duality and relatively.

Europa ；

[例句] 木星的卫星木卫二好像有流动的海洋. Europa a moon of Jupiter, appears to a liquid ocean.

[例句] 科学家们发现关于木卫二的什么信息? What have scientists found about Europa a moon of Jupiter?

secondhand，used ；

[例句] 他们出售二手的和翻新的摩托车零件。 They sell used and reconditioned motorcycle parts.

[例句] 二手的自行车 —— 五十块钱. It was a second - hand bike? 50 RMB ( about $ 6 USD ).

twenty ；

[例句] 超出成本价五个点了 —— 十个点 —— 十五个点 —— 二十个点! Five points above cost -- then ten -- fifteen -- twenty!

[例句] 食物和饮料不够二十个小伙子吃. The food and drinks were insufficient for the needs of twenty lads.

Tuesday，Tues. ；

[例句] 星期二的大赢家为索尼公司，其股票上涨至9,070日元的高点。 Tuesday's notable gainer was Sony, which reached a high of 9,070 yen.

[例句] 纽约州将在星期二举行预选。 New York holds its primary election on Tuesday.

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[例句] 由二苯并-1,3-二氧杂 - 环辛烷 -2- 羧酸经两步反应制得, 总收率70%. It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.

[例句] 地衣是一类独特的生物有机体,其体内合成了多种特殊的次生代谢产物,主要为缩酚酸、缩酚酸环醚 、 缩酚酮、二苯并呋喃等类化合物. A lot of secondary metabolites such and were produced by lichens, a class of unique organisms.

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[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] 二者都不满足于 “ 渐进修补 ” 和 “ 摸索前进 ”. Both parties are disstisfied with " piecemeal tinkering " and " muddling through ".

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[例句] 他划掉了“编剧”二字，改为“作者”。 He crossed out "Screenplay" and put "Written by" instead.

[例句] 周四晚上9点英国广播公司电视二台开始播放他的新连续剧。 He begins his new series on BBC 2 at 9pm on Thursday.

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[例句] 第十二步:后腿的毛修理的时候,要向前梳. On the rear legs, brush the longer hair forward.

[例句] 在接下来的过程中,一步转移法和二步转移法都会被介绍. In the following process - step and two - step stock transfers are explained.

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[例句] 粗粒的铁将降低二茂铁的产量. A coarser grade of iron will lower the yield of ferrocene.

[例句] 这些阴离子受体包括桥联二吡咯柄型二茂铁 、 基于联吡咯的索烃、附加有离子基团的吡咯酰胺、吡咯-2, 5- 二甲酰胺和吡咯 -2,5-二乙酰胺. These receptors include bridged dipyrrole ansa - ferrocene, bipyrrole - based catenanes , guanidinium - appended amidopyrroles, 2,5 - diamidopyrroles and pyrrole - 2,5 - diacetamides.

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[例句] 在这些化合物里, 环戊二烯环只有4个氢. In there compounds, the cyclopentadiene ring has only four hydrogens.

[例句] 其他类异戊二稀则分泌到细胞外间隙中. Other isoprenoids are excreted into the extracellular space.

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[例句] 今年我们办公室已有二人退休. We've had two retirements in our office this year.

[例句] 他有二百本书. He has two hundred books.

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[例句] 三月二十日我召见了多勃雷宁,把他狠狠地训斥了一顿. On March 20 I called in Dobrynin for a tough dressing down.

[例句] 就我来说, 七月二十日事件完全是大祸临头. For me, the July twentieth affair was in every way a calamity.

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[例句] 百分之二十的产品外销。 Twenty percent of the products are exported.

[例句] 百分之二十的人认为他们自己长期都是拖拉的人. Twenty percent of people identify themselves as chronic procrastinators.

dichromatic，bicolor，bicolour ；

[例句] 橙白二色的金州公司车辆都停在外面的路上. The ubiquitous orange and white GSR & L vehicles were assembled on the road outside.

[例句] 老饕之选以黑板烟 、 红二色的弗吉尼亚叶及口味香郁的碎片烟配制, 香辣过瘾. A satisfying , spicy and aromatic blend of Golden & Red Virginia, mixed with luxury broken flake.

[医]heptacosa- ；

[例句] “ 赶到 二十七 呀,老头子的生日, 你得来一趟. ” " The twenty - seventh is the old man's birthday. You must come. "

[例句] 还是没办法,还是得为那个可恨的二十七发愁. That hateful twenty - seventh still preyed on his mind.

[数] dihedron ；

[例句] 直接找矿标志为含五角十二面体黄铁矿铁方解石钾长石脉. The ore - hunting indicator is of calcite - potassium feldspar veins containing pyritohedron pyrite.