化合的
- 与 化合的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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D. 400.Scholars and scientists, including Alfred North Whitehead, have argued that Christianity, rather than impeding science, provided an essential prerequisite for its development, the belief that nature behaves in a regular and orderly manner.
选择进化论的原因有二,首先对基督教来说,它可能是迄今为止来自科学的最大挑战,事实证明它们之间完全能够化合;其次,它与基督教间张力的消解和激化都有经典的事例,因而能非常充分地体现出舆论氛围的重要性。
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In brief, the process involves growing uniform crystals to a certain diameter, thinly slicing the crystal to very precise tolerances, edge rounding the form factors, polishing them into smooth wafers, then carefully packaging the wafers in a class 100/1000 room for shipping to customers. The main advantages of the VGF process include its scalability, low stress, high mechanical strength, and a defect rate that is orders of magnitude lower than conventional compound semiconductor crystal growth processes.
简言之,过程包括成长统一的晶体到某一个直径,薄薄的限制晶体到非常精确的公差,边缘圆整到形态要素,抛光他们成光滑的晶片,然后包装晶体在一个100/1000级别的空间为运输到顾客,VGF过程的主要优点包括,可测量性,低压力,高机械强度和一个比常规化合半导体晶体成长过程数量级低的过失率。
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In the process of laboratory study, oxycodone was prepared by oxidating thebaine at 6,14-position under oxydol, hydrodeoxidizing 7,8-position double bond and 14-position ether under palladium catalyst. Furthermore, N-methyl of oxycodone was isolated byα-chloro-ethyl chloroformate under anhydrous condition and protection of 14-position hydroxyl to obtain noroxycodone, which was further converted into methylnaltrexone by N-alkylation in presence of cyclopropyl bromomethane, then by isolating 3-position methyl of methylnaltrexone under boron tribromide, becoming hydrochloride to prepare target compound, natrexone hydrochloride.
实验室工艺方面,本文首先用双氧水氧化蒂巴因的6-位和14-位、在钯炭催化下加氢还原7-8位双键和14-位醚合成羟考酮,然后提出并优化了在无水和14-位保护的情况下,用氯甲酸-α-氯乙酯脱去羟考酮的N-位甲基合成去甲羟考酮,再用环丙甲基溴将去甲羟考酮的N-位烷基化合成甲基纳曲酮,最后采用三溴化硼脱去甲基纳曲酮的3-位甲基和成盐酸盐合成盐酸纳曲酮。
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During the investigation of the reactivity of O_SCl_2(PPh_3)_2CH=C(PPh_3CHCH=CH_2 and O_SCl_2(PPh_3)_2CH=C(PPh_3C(=CH_2)CH=CH2, several stable osmacycles with novel structure, such as osmabenzenes, osmafurans, osmacycles containing intramolecular-coordinated allene, intramolecular-coordination osmacycles containing osmacarbene, an osmacyclopentadiene, were isolated during the investigation of the reactivity of O_SCl_2(PPh_3)_2CH=C(PPh_3CHCH=CH_2 and O_SCl_2(PPh_3)_2-CH=C(PPh_3C(=CH_2)CH=CH_2.In addition, some convenient and efficient methods to prepare these osmacycles were developed.
首先,合成出两种具有反应活性的金属杂五元环IC配合物OsCl_2(PPh_3)_2CH=C(PPh_3CHCH=CH_2和OsCl_2(PPh_3)_2CH=C(PPh_3C(=CH_2)-CH=CH_2,并对它们进行了系统表征;进而,研究了这些活性五元配合物的反应性,合成出多种稳定的锇杂环配合物,其中包括锇苯、锇呋喃、含配位联烯的锇杂IC环化合化物、含锇卡宾的IC环化物、首例锇杂环戊二烯化合物等多元化的产物。
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The studies are significant to propose the synthetic methodology of benzothiazole derivatives,broaden the application of the metal complexes of benzothiazoles.It is practical value of the research in preparation of phenylacetic acid from metal-catalyized carbonylation.The thesis consists of four chapters.
本论文研究了苯并噻唑衍生物及其钴、铑金属配合物的合成,并研究了两类金属配合物的羰基化催化性能,提供了合成苯并噻唑衍生物的可行路线,拓宽了苯并噻唑金属配合物的应用范围,催化羰基化合成苯乙酸的研究具有重要的实用价值。
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Because be checked finite reason of the person and fictitious those who participate in a person is decision-making, the possibility arises " of bogus of alleged " accept and " to abandon the case of true ", this can change a contract to combine clausal amount to reduce the seriousness of the problem through increasing diversity.
由于被测试人的有限理性以及虚拟参和人的决策,可能产生所谓&纳伪&和&舍真&的情况,这可以通过增加差异化合同组合条款的数量来降低新问题的严重性。
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Some products such as: diisobutyl phthalate, cyclohexylmethyl tridecyl oxalate and 2-isopropylcyclohexanol that have not been reported in the directly oxidation of alkane by traditional method have been obtained, and all the products are used in fuel, leather, textiles, cosmetics and so on.(3) Metal-promoted superacids SO_4~(2-)/SnO_2-M_XO_Y (M= Ce, Co, V, Mo, Ti), which were highly active for this reactions, were investigated in order to improve its acid sites activity, selectivity and stability.
这一在常温常压下以锡系超强酸为催化剂催化氧化碳氢化合(来源:ABCca8cca论文网www.abclunwen.com)物的反应还未见报道:(3)金属改性锡系固体超强酸SO_4~(2-)/SnO_2-M_XO_Y(M=Ce,Co,V,Mo,Ti)在催化氧化反应中表现出很好的催化活性,通过研究表明金属改性剂的加入提高了催化剂酸性,选择性和稳定性;(4)具有光催化活性金属Ti的引入极大的提高了催化剂SO_4~(2-)/SnO_2的比表面积。
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CL which can be detected during tensile testing of unaged polyami-de and UV-irradiated polypropylene specimens, has been found to be an effect of thermally unstable hydroperoxides decomposing due to stress-induced adiabatic heating, which after necking is localised to the travelling neck shoulders.
在对物理尼龙和紫外线照射过的聚丙烯样件的拉伸测试过程中,采用化合光对其进行检测,可以发现一种不稳定的热效应产生的氢分解。这是由于在受拉伸颈部的轴肩局部位置,因应力作用而产生的绝热加热。
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CL which can be detected during tensile testing of unaged polyami-de and U-irradiated polypropylene specimens, has been found to be an effect of thermally unstable hydroperoxides decomposing due to stress-induced adiabatic heating, which after necking is localised to the traelling neck shoulders.
在对物理尼龙和紫外线照射过的聚丙烯样件的拉伸测试过程中,采用化合光对其进行检测,可以发现一种不稳定的热效应产生的氢分解。这是由于在受拉伸颈部的轴肩局部位置,因应力作用而产生的绝热加热。
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Enzymatic synthesis of glycerides directly from glycerol and polyunsaturated fatty acids was studied.
研究了在脂肪酶N435的催化作用下,游离多不饱和脂肪酸与甘油酯化合成的工艺,分别考察了甘油与脂肪酸的质量比、反应时间、反应温度、酶用量、初始加水量等单因素对酯化效果的影响。
- 推荐网络例句
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This one mode pays close attention to network credence foundation of the businessman very much.
这一模式非常关注商人的网络信用基础。
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Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.
扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。
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There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.
双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。