预作用

The paper carries on qualitative analysis to the acetone extractives before and after discoloring, shows the main components of the extractives and then takes comparison. The results shows :①The hydroxyl is oxidized and then shifted to the carbonyl,carboxyl, ester and ketone groups during inducing discoloration under the pretreatment conditions,which makes the wood color deep;② There are plenty of auxochromic groups in the acetone extractives of silver chain, the interaction between the auxochromic groups and the chromophoric groups makes the wood color deep.

摘 要：本文通过对刺槐变色前后丙酮抽出物的定性分析，得出变色前后丙酮抽出物的主要成分，进行对比分析，初步得出抽出物对诱发变色的作用为：①变色前后羟基在预处理条件下氧化成羰基，羧基，酯基和酮基等官能团，使木材颜色加深；②刺槐丙酮抽出物的主要成分中含有大量助色基，这些基团会与木素中的发色基团相互作用，使木材颜色加深。

Objective To evaluate the efficacy of CAG treatment on patients with untreated acute myeloid leukemia and study its mechanism.

目的 观察含粒细胞集落刺激因子的预激方案在治疗初治急性髓细胞白血病中的疗效，并进一步研究其作用机制。

It provided a basis for further study on the role of pre-stored genes in conidia of Trichomphyton rubrum as well as the mechanism of condial germination.

为进一步研究红色毛癣菌孢子中预存储基因的作用以及孢子萌发的机理提供了依据。

It is concluded that the ultrafiltration preconcentration combining with multieffect evaporation is a promising concentration procedure for straw black liquor, which can not only reduce the concentration costs, but also improve the subsequent evaporation and combustion operation due to the desilicification and purification of ultrafiltration.

两种膜比较，磺化聚砜膜更易清洗，而且水通量大。5）超滤浓缩后，黑液中木素的浓度和纯度大大提高，超滤是从黑液中分离木素的理想方法。6）与多效蒸发相比，用超滤法浓缩麦草黑液可降低能耗70~85%，若用于黑液的预浓缩，再结合多效蒸发，不仅可以降低黑液的浓缩费用，而且由于除硅和纯化作用，会大大改善后继的蒸发和燃烧的操作。

Solid superacids SO(superscript 2- subscript 4)/TiO2-Al2O3 were prepared and used to catalyze the esterfication of iso-octyl alcohol and by-products in oxidization reaction of durene, which were pretreated before esterifying reaction.

以均四甲苯氧化反应副产物预处理后得到的混合酸和异辛醇为原料，在固体超强酸SO(上标 2-下标 4)/TiO2-Al2O3作用下进行合成混合酯的研究。

Based on pre-experiment foundation of the earlier period, 60 male patients among 45-65 year old were chosed as the clinical case according to the PADAM diagnosis standard, and were divided into 3 groups according to the block stochastic principle, the observation group (acupuncture combined with BUSEHN capsule), group 1, group 2 (takes orally BUSEHN capsule group), each group had 20 cases, and each group of patients was measured by the method of radio-immunity for the serum level of testosterone, luteinizing hormoha, follicle-stimulating hormone before and after the treatment. By the contrast of the grade of PADAM symptom among three groups before and after treatment ,we can reveal the whole funcamental characteristic of acupuncture combined with herb ,and discuss a new way to enhance the curative effect of acupuncture ,and summarize the endocrinous adjustment of acupuncture for the PADAM's patients and the orchidic improvement by the treatment of acupuncture.

在前期预实验的基础上，选择符合诊断标准的PADAM诊断标准的45-65岁男性患者临床病例60例，按照区组随机原则分为3组，观察组、对照组1、对照组2，每组各20例，采用放射免疫法分别测定各组患者治疗前后血清中血清睾酮、黄体生成素、卵泡刺激素的血清浓度的水平；通过三组及三组间治疗前后PADAM症状评分指数的对比研究，揭示针药结合的整体调节作用特色，探讨提高针灸疗效的新途径；总结出针刺对中老年雄激素缺乏综合征患者的内分泌的调节及针刺对睾丸的改善程度，探讨针药结合治疗本病的机制及针灸增效剂的应用前景，为今后进一步研究打下坚实基础。

OBJECTIVE To observe the role of exogenous and endogenous adenosine preconditioning on myocardial protection in extracorporeal circulation.

目的 观察外源性及内源性腺苷预适应在体外循环中对心肌的保护作用。

Compared with conventional combustion, catalytic combustion is fameless, in which VOC is pre-mixed with air, then passes homogenously catalyst bed and burned efficiently. More significantly,because catalytic combustion may be performed under lower temperature, N2 in air is free of being oxidized into NOX, which is responsible for the formation of acidic rain ,at the same time when catalytic combustion happens.

与普通燃烧方式相比，催化燃烧是无焰燃烧，VOC与空气进行预混合后，均匀通过催化剂床层，在活性粒子的催化作用下实现燃烧，具有很高的燃烧效率，而且催化燃烧能显著降低燃烧温度，避免了其燃烧时将空气中氮气同时氧化，形成氮氧化物，从而避免了酸雨的产生。

The fractionization with steam explosion is beneficial to the enrichment of SiO2 in straw.

汽爆分级预处理对于富集秸秆中的SiO2有着积极的作用。

Improving the quality of the gulonic acid which is a intermediate of vitamin c , is important to the inter-quality of vitamin c.

古龙酸作为维生素C生产中的重要中间体，其质量的提高，对于维生素C的内在质量(包括晶型的完整、均一、保质期的延长等)有着至关重要的作用，本论文考察了以絮凝法对发酵液进行预处理，效果较好。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。