成双的

Addition reaction is an organic reaction , it occurs in a double bond or triple bond of the substance.

加成反应是一种有机化学反应，它发生在有双键或叁键的物质中。

The effect of injection advance angle on spray,combustion and soot formation was investigated.

介绍了采用同步双成像技术研究供油提前角对直喷式柴油机喷雾、燃烧和碳粒变化历程影响的研究结果。

Recently, we have detailed a new series of furan-containing teraryl cyclophene derivatives 40a-f and 67. And two keys to syntheses were one-pot furan annulation and the McMurry reaction.

过去我们已成功地利用呋喃成环反应，与McMurry反应合成到一系列的含呋喃之[n.2]环芃烯40a-f与环芃双烯67。

Rather than having a bunch of Whirlwind Barbarians using miscellaneous weapons, one can have a Cleave barbarian and a Backbreaker barbarian.

与其让Bar们拿着五花八门的武器玩旋风斩，不如练成"横劈型"Bar、"背击型"Bar或者混合型双持Bar。

This technology can automatically detect the correctness of velocity field, which greatly improves the computation accuracy of focusing operator and the accuracy of bifocal amplitude-preserving imaging.

该技术可以自动检测宏观速度场正确与否，大大提高了聚焦算子的计算精度和双聚型保幅成像精度。

Her griddlecakes done to a goldenbrown hue and queen Ann's pudding of delightful creaminess had won golden opinions from all because she had a lucky hand also for lighting a fire, dredge in the fine selfraising flour and always stir in the same direction, then cream the milk and sugar and whisk well the white of eggs though she didn't like the eating part when there were any people that made her shy and often she wondered why you couldn't eat something poetical like violets or roses and they would have a beautifully appointed drawingroom with pictures and engravings and the photograph of grandpapa Giltrap's lovely dog Garryowen that almost talked it was so human and chintz covers for the chairs and that silver toastrack in Clery's summer jumble sales like they have in rich houses.

她那烤成金褐色的薄饼和放有大量美味奶油的安妮女王布丁曾赢得过众人的好评。因为她有一双灵巧的手，不论点火，还是撒上一层加了发酵粉的精白面，不断地朝一个方向搅和，然后搀上牛奶白糖，调成奶油，或是将蛋清搅匀，她样样擅长。不过，她可不喜欢当着人面吃什么，怪害臊的。她常常纳闷为什么不能吃一些像紫罗兰或玫瑰花那样富于诗情的东西！他们还会有一间布置优雅的客厅，装饰着绘画、雕刻以及外祖父吉尔特拉普那只可爱的狗加里欧文的照片。它是那样通人性，几乎能说话了。椅子套着光滑的印花棉布罩子，还有来自克莱利的夏季旧杂货义卖展上的银质烤面包架，就像阔人家拥有的那样。

Two series of polyurethane acrylate grafted acrylic resins (Acr-g-TPU-PETA and Acr-gPPU-PETA) self-emulsifying systems are obtained by grafting -NCO group modified polyurethane acrylates with acrylic copolymer prepared from n-butyl acrylate, styrene,βhydroxyethyl methacrylate and acrylic acid The self-emulsifying systems showed Newtonian fluidity with viscosity closed to that of water, the solid contents were around 30% The T〓 of 15～4℃ for dried film before photocuring favored film formation at room temperature DSC and DMA results showed that PU-PETA is compatible with acrylic resin in the grafted resin The TG and dTG curves for Acr-g-PU-PETA samples were substantially different from the corresponding blends, and the brodened dTG peaks for photocured grafted resin suggest that there might be multiple interactions among chain segments The photocued film of the grafted resins self-emulsifying system exhibited good overall properties with polyurethane acrylate grafts ranging from 30% to 50%, and Acr-g-TPU-PETA series showed better properties than Acr-gPPU-PETA series The adhesion of the photocured film was 1～2 grade, impact strength was 50kg-cm and flexibility was 1mm The Shore hardness and the adhesion of the film decreased markedly if PETA was replaced by HEMA as photoactive group due to the lower C=C double bond content in the grafted resin The polyhydroxy amine-linked thioxanthones photoinitiators can be evenly dispersed in self-emulsifying system without color spot appearing in the dried film The films photocured with IV〓～IV〓 generally exhibited higher Shore hardness, gloss and solventresistance than that cured with Irgacure 2959 and did not induce the rusting of the iron substrate Pigmenting with titanium oxide had no effect on the photocuring The polyhydroxy amine-linked thioxanthone IV〓 and IV〓 can be new candidates for the formulation of titanium oxide pigmented photocurable water-borne coatings for their pale-yellow appearance and slight interference with the color of the coatings WB 4759 with high water-solubility coalesced and separated from the dried resin film, and even induced the rusting of iron substrate.

以丙烯酸丁酯，甲基丙烯酸-β-羟乙酯，丙烯酸及苯乙烯合成厂丙烯酸共聚树脂，并与含-NCO端基的聚氨酯丙烯酸酯接枝反应，经水性化后，得到两个系列（Acr-g-TPU-PETA和Acr-g-PPU-PETA）各5个不同配比的丙烯酸树脂接枝聚氨酯丙烯酸酯自乳化体系，粘度与水相近，为牛顿流体，固含量30％左右。光固化前干燥涂膜的玻璃化转变温度在-15℃～4℃之间，有利于室温下成膜。DSC及DMA谱表明两种树脂基本相容。Acr-g-PU-PETA的热失重行为明显不同于共混材料，接枝样dTG峰明显宽化，表明接枝样中链段之间的相互作刚有多重性，丙烯酸树脂与聚氨酯之间有一定的相容性。接枝树脂自乳化体系光固化涂层的综合性能以聚氨酯丙烯酸酯成分为50％～30％者相对较好，且以Acr-g-TPU-PETA系列更理想。光固化膜的附着力为1～2级，冲击强度为50kg·cm，柔软性多为1mm。以HEMA代替PETA作为接枝树脂的活性基团，碳—碳双键密度太低，光固化膜交联点太少，硬度和附着力均较差。多羟基胺连硫杂蒽酮光引发剂能均匀分散于树脂自乳化体系和接枝树脂干膜中，不出现色斑，光固化膜肖氏硬度一般高于以Irgacure 2959为光引发剂的光固化膜，光泽度及耐丁酮溶剂性能均有所提高，不会诱导铁基生锈，钛白着色对光固化结果几乎没有影响。本论文所合成的多羟基胺连硫杂蒽酮光引发剂IV〓与IV〓为浅黄色，对光固化涂层的颜色干扰较小，为配制钛白着色光固化水性涂料提供了新的光引发剂。水溶性太强的WB 4759在干膜中易聚结析出，且对所附着的铁基有诱导锈蚀作用。

a system of along-track mode sar based on the gps is established.by seeing the gps signal as a chirp,chirp scaling algorithm of this mode with large squint angle is investigated.chirp scaling algorithm is considered more efficient and widely applicable when the bistatic sar system is in side-look or small squint angle mode,but in large squint angle case,the errors caused by taylor expansion are so large that the algorithm could lose its precision.in such a case,an equivalent mono-static sar range mode which has fewer errors than taylor expansion with large squint angle is proposed to substitute the range history of bistatic sar.then bistatic sar images with large squint angles are gotten by common nonlinear cs algorithm.the effectivity of the method is verified by matlab simulation.

摘 要：建立了基于gps的顺轨sar系统模型，通过将gps信号等效为chirp信号，研究了在该模式下的大斜视角chirp scaling算法。在正侧视或小斜视情况下，cs算法具有较好的聚焦性能和广泛的适用性，但在斜视角较大的情况下，该算法将散焦而不能成像，因而提出了用等效的单基地距离模型来代替双基地距离历史的方法，解决了大斜视角情况下距离模型二阶近似误差较大的问题，并结合单基地非线性cs算法，实现了在大斜视角情况下的基于gps反射信号的双基地sar高精度成像，最后通过matlab仿真进行了验证。

Yesterday afternoon, when her quiet again to head shape appeared at the scene and immediately brought us to this stage of unlimited memory, with only five months ago is not the same, and the quiet appearance together four leading Duyulu, Hou Yong, Liu Wei and Zhao Jun are getting to be the story of a head shaving needs five individuals stand together Lee immediately in their nose into a flash :: For this stage of the quiet without a dress, a black water mink fur shawls, two quite minority characteristics huge earrings, a loss of 10 cm high pine cake sandals, coupled with the incomparable brilliant smile, the character models look at the mood is exceptionally good.

昨天下午，当女主角宁静再度以光头造型出现在现场，立刻勾起大家对这部戏的无限回忆，只是同5个月前不一样的是，和宁静一同亮相的四位男主角杜雨露、侯勇、刘威和赵君也都通通应剧情的需要剃成了光头，五个人站在一起，镁光灯立刻在他们的头顶闪成一片……为了这次的亮相宁静着实打扮了一番，一件黑色的水貂皮披肩，两只颇具少数民族特色的硕大耳环，一双足有十厘米高的松糕凉鞋，再加上无比灿烂的笑容，这位性格女星看心情是格外不错。

E. OCB mode LCD elements . Then,we added bi-functional powder and LC E7 in the bulk copolymer of Poly Acrylic Acid and EOPO,then poured the LC solution,and exposed it with 5V voltages under ultraviolet radiation. Finally,we observed the changing phenomena of the planar display of OCB cell with additional external voltage under polarized microscopy . It can be observe obviously the polymer wall in OCB cell when NO.4 LC solution having concentration of 3％ wt . At the same time,the polymer which didn't sheltered by mask will polymerize,then,lead LC into high inclined angle alignment. And it formed discontinuous structure along mask affected LC which surrounded the wall. The results measured by photoelectric instruments showed the discontinuous structure not only keeps the inner LC structure at twist mode,but also promotes the originated respond-velocity of OCB.

然后利用聚丙烯酸与EOPO之团聚共聚合物，添加双官能基粉体及液晶E7，制备成液晶溶液再注入液晶盒里，放置光罩并给予固定外加5V电压在UV下进行曝光，然后在偏光显微镜下外加电压观察液晶盒的平面显示变化现象，发现四号高分子的液晶溶液在3%时，可以明显观察未被光罩遮蔽的高分子将会聚合形成高分子格子结构，并造成液晶成高倾角排列，顺著光罩形成不连续的结构藉以影响墙周围的液晶，从光电量测结果显示，利用此种不连续结构不仅可将内部液晶结构维持在twist的状态，也成功提升OCB原有的响应速度。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！