等环的
- 与 等环的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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In the process of producing soft urethane polyester foamed plasics,CFCs as forming agent are replaced by cyclopentane whose value of ozone depletion is zero to decrease the destruction of environment,and the modified poly-ether-alcohol is used as reactants through one-step reaction.
为了解决软质聚氨酯泡沫塑料生产过程中的环保问题,采用臭氧消耗值为零的环戊烷为物理发泡剂替代严重破坏臭氧层的氯氟烃,以改性聚醚多元醇与甲苯二异氰酸酯等为主要反应物,一步法反应研制试产了软质聚氨酯泡沫塑料。
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The company's main product is high-pressure foam machines, laminating machines, various types of polyurethane products production line, premixed raw materials, storage transportation system, and at the same time undertake cyclopentane, isobutane reconstruction project and polyurethane equipment overhaul , Alteration, repair equipment important spare parts sales.
公司的主要产品为高压发泡机、层压机、各类聚氨酯制品生产线、原料预混、储存输送系统等,并同时承接环戊烷、异丁烷改造工程及聚氨酯设备的大修、改造,设备重要零配件的维修、销售。
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The purpose of this study was to measure the gaseous inorganic acids / bases and volatile organic compounds emitted during the business of central Taiwan Science Park, and establish the air quality data. Two sampling sites were located in the north and south of the Park. The measuring instrument was the annular denuder system for inorganic acids and bases and the method for VOCs' measurement was according to Taiwan's EPA method NIEA
中文摘要本研究之目的乃在建立中部科学园区之空气品质污染物浓度资料,监测地点为基地北侧的土地公庙及南侧的国安国小,监测污染物包括空气中气状、粒状的无机酸碱及挥发性有机化合物等气体,监测仪器及方法依据则分别为环型扩散采样器及环保署环境检验所公告之NIEA A715.12B方法。
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A series of double metal cyanide complex catalysts were prepared in two different methods by using β-cyclodextrin, PEG-1000 or Tween-60 as an additional complex ligand respectively, and the effects of different kinds of additives and preparation methods on the appearance, particle diameters, crystal constitution and activity of DMC catalysts were also studied.
分别以PEG-1000、β-环糊精和吐温-60等为助络合剂,采用不同工艺方法制备了具有不同结构的双金属氰化物络合物催化剂,研究了不同助络合剂和不同制备方法对DMC催化剂的形貌、粒径、晶型结构和催化活性的影响。
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According to the concept of envelope evaluates equation of contour,the conclusion can be reached that the contour of torus is colse elliptc equidistant curve but is not ellipse.
根据包络的概念解出轮廓线的方程式,从而得出结论:圆环面的轮廓线是封闭的椭圆等距曲线,而不是椭圆。
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I introduced in the paper one kind of VVVF elevator control system, I has used the closed loop velocity modulation regarding the elevator velocity modulation system, and has carried on the detailed design separately to the hardware electric circuit main part,including PLC control section,frequency changer,main circuit and gate and so on.
在论文中我介绍了一种VVVF的电梯控制系统,对于电梯的调速系统我采用了闭环调速,并对硬件电路的主要部分分别进行了详细设计,包括PLC控制部分,变频器,主电路和门电路等。
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Previous studies have shown it is futile that sediment under 30% of area, do without typing again. Results: Full mass group produce a good curative effect. Gappy mass and clustered group take effect. Rare group is futile. Conclusion: It is concluded that sediment grouping in the shape was useful for evaluate the effect of TACE for HCC.[1] Gattoni F, Cornalba G, Brambilla G, et al. Survival of 184 patients with hepatocellular carcinoma in cirrhotic
结果:我们认为分4型较好,1)稀少型,累计病灶内碘油沉积面积少于30%者列为稀少型,不再细分,并尽快改用其它的治疗肝癌的方法,因为,这型的TACE治疗效果不佳,不必第二次用TACE,再去分型也就没有实际意义了。2)均匀型,整个病灶均匀摄取碘油。3)缺损型,包括环型和某一区域沉积等情况。4)簇集型,碘油呈小簇状分散型分布,但肿瘤内碘油潴留累计不少于30%。
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According to the selective standard of excluding and including cases,90 cases of malignant tumor were randomly divided into 3groups, Medical therapy group (30cases), Moxibustion with ginger group(30cases), A.S.T group (30cases) by using method of random number table. Three groups patients were accepted chemotherapy in vein or mouth given acute bone marrow depression drugs such as Cyclophosphamide,Nitrogen mustard (HN2),Methotrexate,Cytosine arabinosidee,Hydroxyurea,Cisplatin,Etoposide (VP-6),Vincristine etc.
根据本课题研究病例选择的纳入标准和排除标准,选择90例接受化疗的恶性肿瘤病例,通过查随机数字表法随机分为西药组,隔姜灸组和穴位贴敷组,各30例,三组患者都至少采用环磷酰胺,氮芥(HN2),甲胺蝶呤,阿糖胞苷,羟基脲,顺铂,长春碱类(VP-6),鬼臼毒类等急性骨髓抑制药物中的一种或一种以上通过静脉或口服给药进行化疗。
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Iseki , this theory contact to be suffused with universal algebra, group theory, ring theory, lattice theory,Boolean algebra,set point topology, toplogical algebra etc. we have already obtained the large quantity result to the research of the BCK algebra.
Iseki引入的代数系统,这一理论联系到泛代数、群论、环论、格论、布尔代数、点集拓扑和拓扑代数等,对BCK代数的研究已经取得了一大批的研究成果。
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The synthesis of guaifenesin was improved by direct application of the hydrolyzate of epichlorohydrin for the etherification with guaiacol and using toluene and ethyl acetate as the solvents for crystallization and recrystallization, respectively.
通过直接利用环氧氯丙烷的水解液中的 3-氯- 1,2 -丙二醇和改良成品析晶法及重结晶溶剂等工艺改进,愈创甘油醚的总收率可达 80 %。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。