英语人>网络例句>氧化合物 相关的搜索结果
网络例句

氧化合物

与 氧化合物 相关的网络例句 [注:此内容来源于网络,仅供参考]

Objective: To sexplore the anti-tumor activity to Hela, SW480 and A549 and the growth regulative activitiy to radishes of amphibrya besides corns of dicotyledon of the target compound γ-(N-p-methylphenylsulfonyl) aminopropyl-3, 7, 10-trimethyl-2, 8, 9-trioxa-5-aza1-1-silicontricyclo [3, 3, 3, 0(superscript 1,5)] Undecanes.

目的:探讨目标化合物γ-丙基-3,7,10-三甲基-2,8,9-三氧杂-5-氮杂-1-硅杂三环[3,3,3,0(上标 1,5)]十一碳烷对人宫颈癌细胞、人结肠癌细胞(SW480)和人肺腺癌细胞(A549)的抗肿瘤效应以及对单子叶植物玉米、双子叶植物萝卜的生长调节作用。

In this paper, Claisen condensation of isochroman ?4?one as starting material with diethyl oxalate is carried out to form β?diketone compound of isochroman ?4?one.

以异色满酮 4为起始原料,经Claisen缩合得其β二酮衍生物,再与水合肼进行Knorr反应环合成 3 乙氧甲酰基和 3 肼甲酰基异色满并吡唑衍生物,通过酰肼与糠醛反应成腙后,分别与巯基乙酸和氯乙酰氯反应合成了标题化合物

The transition metal catalysis reduction, hydride reagents reduction, sodium dithionite reduction and bioreduction ware discussed.

综述了近年来α,β-不饱和羰基化合物α,β-碳碳双键和碳氧双键的选择还原研究进展,讨论了过渡金属催化还原、氢化试剂还原、连三亚硫酸钠还原以及生物还原。

Its universality: its democratic equality and constancy to its nature in seeking its own level: its vastness in the ocean of Mercator's projection: its unplumbed profundity in the Sundam trench of the Pacific exceeding 8000 fathoms: the restlessness of its waves and surface particles visiting in turn all points of its seaboard: the independence of its units: the variability of states of sea: its hydrostatic quiescence in calm: its hydrokinetic turgidity in neap and spring tides: its subsidence after devastation: its sterility in the circumpolar icecaps, arctic and antarctic: its climatic and commercial significance: its preponderance of 3 to 1 over the dry land of the globe: its indisputable hegemony extending in square leagues over all the region below the subequatorial tropic of Capricorn: the multisecular stability of its primeval basin: its luteofulvous bed: its capacity to dissolve and hold in solution all soluble substances including millions of tons of the most precious metals: its slow erosions of peninsulas and islands, its persistent formation of homothetic islands, peninsulas and downwardtending promontories: its alluvial deposits: its weight and volume and density: its imperturbability in lagoons and highland tarns: its gradation of colours in the torrid and temperate and frigid zones: its vehicular ramifications in continental lakecontained streams and confluent oceanflowing rivers with their tributaries and transoceanic currents, gulfstream, north and south equatorial courses: its violence in seaquakes, waterspouts, Artesian wells, eruptions, torrents, eddies, freshets, spates, groundswells, watersheds, waterpartings, geysers, cataracts, whirlpools, maelstroms, inundations, deluges, cloudbursts: its vast circumterrestrial ahorizontal curve: its secrecy in springs and latent humidity, revealed by rhabdomantic or hygrometric instruments and exemplified by the well by the hole in the wall at Ashtown gate, saturation of air, distillation of dew: the simplicity of its composition, two constituent parts of hydrogen with one constituent part of oxygen: its healing virtues: its buoyancy in the waters of the Dead Sea: its persevering penetrativeness in runnels, gullies, inadequate dams, leaks on shipboard: its properties for cleansing, quenching thirst and fire, nourishing vegetation: its infallibility as paradigm and paragon: its metamorphoses as vapour, mist, cloud, rain, sleet, snow, hail: its strength in rigid hydrants: its variety of forms in loughs and bays and gulfs and bights and guts and lagoons and atolls and archipelagos and sounds and fjords and minches and tidal estuaries and arms of sea: its solidity in glaciers, icebergs, icefloes: its docility in working hydraulic millwheels, turbines, dynamos, electric power stations, bleachworks, tanneries, scutchmills: its utility in canals, rivers, if navigable, floating and graving docks: its potentiality derivable from harnessed tides or watercourses falling from level to level: its submarine fauna and flora, numerically, if not literally, the inhabitants of the globe: its ubiquity as constituting 90 percent of the human body: the noxiousness of its effluvia in lacustrine marshes, pestilential fens, faded flowerwater, stagnant pools in the waning moon.

50它的普遍性,它的民主的平等性,以及保持着它自身求平的本质。用墨卡托投影法在地图上所标示出的浩淼的海洋;太平洋中巽他海沟那超过八千噚的不可测的深度;永不消停、后浪推前浪地冲刷着海岸线每一部位的波涛以及水面上的微粒子;水的单位粒子的独立性;海洋变幻莫测;根据液体静力学,风平浪静时它纹丝不动;根据液体动力学,小潮大潮时它便涨了起来。暴风雨后一片沉寂;北极圈与南极圈冰冠地带的不毛性以及对气候及贸易的影响;跟地球上的陆地相比占三对一优势;它在亚赤道带南回归线以南的整个区域延伸无数平方海里的绝对权威;其在原始海盆里数千万年以来所保持的稳定性;它那橙红色海床;它那把包括数百万吨贵金属在内的可溶解物质加以溶解,并使之保持在溶解状态的性能;它对半岛和有下陷趋势的岬角所产生的缓慢的浸蚀作用;其冲积层;其重量、容积与浓度;它在咸水湖、高山湖里的静谧;其色调因热带、温带和寒带而变为或浓或淡;与陆上的湖泊、溪流及支流汇合后注入海洋的河川,还有横跨大洋的潮流所构成的运输网。沿着赤道下面的水路自北向南的湾流;海震、水龙卷、自流井、喷泉、湍流、漩涡、河水暴涨、倾盆大雨、海啸、流域、分水岭、间歇泉、大瀑布、漩流、海漩、洪水、泛滥、暴雨等滥施淫威;环绕陆地的上层土壤那漫长的曲线;源泉的奥秘可用探矿杖来占卜或用湿度测定器来揭示;阿什汤大门的墙壁上的洞、空气的饱和与露水的蒸发能够证明那潜在的湿度;水的成分单纯,是氢二、氧一的化合物;水的疗效;水的死海里的浮力;它在小溪、涧谷、水坝的缝隙、船舷的裂口所显示的顽强的浸透性;它那清除污垢、解渴、灭火、滋养植物的性能;作为模范和典型,它的可靠性;它变化多端:雾、霭、云、雨、麦、雪、雹;并在坚固的消防龙头上发挥出压力;而且千姿百态:湖泊、湖岔、内海、海湾、海岬、环礁湖、环状珊瑚岛、多岛海、海峡、峡江、明奇、潮汐港湾、港湾;冰河、冰山、浮动冰原显示出它是何等坚硬;在运转水车、水轮机、发电机、发电厂、漂白作坊、鞣皮厂、打麻厂时,它又是那样驯顺;它在运河、可航行的河川、浮船坞和干船坞所起的作用;潮汐的动力化或利用水路的落差使它得以发挥潜力;海底那些成群的动物和植物虽然并非名副其实地栖息在地球上,论数目却占地球上生物的一大半;水无所不在,占人体的百分之九十;在沼泽地、闹瘟疫的湿地、馊了的花露水以及月亏期那淤积污浊的水塘子,水所散发的恶臭充满了毒气。

In chapter two and three, the effect of doping structures on the magnetism and energetics ofS andP based MSs was studied.

在第二章和第三章中,论文以S和P为主要研究对象系统探讨了锌氧族化合物和III-IV磁性半导体的掺杂磁性和热力学性质。

It was shownthat, among the three possible tautomers; i.e., the keto-form and the two enol forms, and thecorresponding enol anion, only the enol form 31 was actually responsible for the singletoxygen reactions.

用核磁共振及从头算法研究了化合物12b和23a在甲醇和吡啶中的烯醇化作用,结果表明,在其三种互变异构体以及相应烯醇负离子中,只有烯醇式31是实际参与单重态氧反应的成份。

The efficient first asymmetric syntheses of-6β-hydroxy-7αH-eudesm-4-en-3-one, and its C-6 epimer were achieved starting from-dihydrocarvone, whichprovide a novel and efficient synthetic method to 6-oxgenated eudesmanes.

以-二氢香芹酮为原料,经五步反应,首次完成了6β-羟基-4(5)-烯-3-羰基桉烷及其6位差向异构体的立体选择合成,并为C-6位含氧官能团取代桉烷类化合物的合成提供了一种简便有效的方法。

This series products are compounds polymerized from ethylene oxide as initiating agent and EO.

本系列产品是以乙二醇为起始剂与环氧乙烷聚合制得的化合物。

Other chemicals, 3-PGA, 3-GAP, HPMS, DCMU, DBMIB, Ant A and gramicidin D all showed an inhibitory effect on PSII photochemical activity (expressed by chlorophyll fluorescence parameters) and electron transport rate of PSII+PSI.

其他外加化合物3-PGA、3-GAP、HPMS、DCMU、DBMIB、Ant A、短杆菌肽D等则对以叶绿素荧光参数表示的光化学活性和氧电极测定的全链电子传递速率表现抑制效应。

Other chemicals,3-PGA,3-GAP,HPMS,DCMU,DBMm, Ant A and gramicidin D all showed an inhibitory efect on PSII photochemical activity (expressed by chlorophyll fluorescence parameters)and electron transport rate of PSII+PSI.

其他外加化合物3-PGA、3-GAP、HPMS、DCMU、DBMIB、Ant A、短杆菌肽D等则对以叶绿素荧光参数表示的光化学活性和氧电极测定的全链电子传递速率表现抑制效应。

第31/47页 首页 < ... 27 28 29 30 31 32 33 34 35 ... > 尾页
推荐网络例句

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!

Several theories about reigniting and extinguishing of the arc have been refered.

本文综合考虑了几种电弧重燃和熄灭理论。