率

The thermal property studies indicate that the mass loss of compound B was 54.39% at 242.2~750℃, and when the temperature was 1000℃, there was 25.11% char residue left, which showed that the title compound has a good thermal stability and char forming capability. Using acetonitrile as the solvent instead of trichloromethane or 1, 2-dichloethane gave higher yield. During the synthesis, the yield was very low when triethylamine was used as acid acceptor alone, and when a little amount of 4-dimethylaminopyridine was added at the same time, the yield could be 81%.

结果表明，所合成的化合物B的结构与预期的结构一致；热性能研究表明，化合物B在242.2~750℃质量损失为54.39%，1000℃时仍有25.11%的炭残渣，显示出优异的热稳定性和成炭性；在相同反应条件下，用乙腈作为溶剂的反应产率比使用氯仿和二氯乙烷为溶剂的高，并且在合成过程中，单独使用三乙胺作为缚酸剂时产率很低，而当同时加入少量4-二甲氨基吡啶时，产率可达81%。

The results show that 1,6-bis(2-hydroxyphenyl)pyridineboron (dppyBF functions acts as a electron transport group and triphenylamine as a hole transport group; the charge transport ability for the two types of carriers is not only high but also nearly balanced, which explains why it is an efficient single-layer electroluminescent device.

从重组能角度看，空穴迁移率大于电子迁移率，然而电子的交换积分大于空穴的交换积分，综合这两个因素，电子和空穴的迁移率几乎相当，这从理论上解释了其可以做成单分子发光器件的原因。

The results showed as follows:Maize grown in the treatment of compound fertilizer containing urea alone had significantly lower germination rate than the maize receiving mixed CO(NH2)-N/NH4+-N or mixed NO3——N/NH4+-N in compound fertilizers in Udic Isohumisols.However,there was no significant affect of nitrogen forms on maize germination rate in Udic Cambosols.

结果表明，在黑土上，施用酰胺态氮为单一氮素形态的复混肥料时，玉米的出苗率明显下降；而用部分铵态氮替代酰胺态氮后制成的混合态氮和由铵态氮与硝态氮构成的复混肥对玉米的出苗率影响较小；不同氮素形态配比的复混肥对潮土上生长的玉米出苗影响较小，各处理的出苗率可达到90%以上。

The results show that 60Co-γ ray radiation has the most remarkable effect on the degradation of organophosphorus pesticides such as fenitrothion, parathion, methyl-parathion, phorate and chlorpyrifos and the maximum degradation rates are over 85%. The degradation rates of methamidophos, acephate, malathion ,dimethoate are slightly inferior to them and the optimum degradation rates is just only 34.70%. At the same time, the contents of soluble total sugars, glucose, fructose, sucrose and total sugars in apple juice decrease unconspicuously, but the total acid content in apple juice and its color value and clarity increase. Based on a comprehensive consideration of the 60Co-γ radiation effect on the actual degradation of organophosphorus pesticides in apple juice and its main chemical and physical indexes, organophosphorous pesticides residue will be decreased to a lower level with radiation dose of about 5 kGy but the main chemical and physical indexes of export apple juice can not be affected.

结果表明： 60Co-γ射线辐照处理对苹果汁中杀螟硫磷、对硫磷、甲基对硫磷、甲拌磷、毒死蜱降解效果最为显著，最高降解率均在85%以上；对苹果汁中甲胺磷、乙酰甲胺磷、马拉硫磷和乐果的降解效果不显著，最高降解率仅为35%；在0～9 kGy辐照剂量范围内降解苹果汁中有机磷农药的同时，会使苹果汁中的可溶性固形物、葡萄糖、果糖、蔗糖及总糖含量轻微降低，苹果汁的总酸度有所增加，苹果汁的色值及透光率提高；综合分析60Co-γ射线辐照对苹果汁中有机磷农药的实际降解效果及对苹果汁主要理化指标的影响，选用5 kGy的辐照剂量已完全使苹果汁中的有机磷农药残留降低到一个很低的水平，又不会对苹果汁出口主要理化指标造成影响。

At the super-low permeable reservior sandstone of Fu and Yang in Daqing Oilfield, many pore throats exist a lot in the types of compacted and restored flakes and curved lamellas while the pore volume of micropore and the thin, compacted and shrunken throat that contribute little to flow take large scale in the total pore space. Thereof high filtrational resistance is caused by much trouble including high content of reservoir shale, serious sensibility to pressure at waterflooding, remarkable effects of undersaturation and water blocks in micropore. A method with laboratory experiment, theoretical confirmation and field application included was adopted to analyze the non-linear flow characteristics, to reveal the deep mechanism of pinhole enveloping macropore and to provide a new technology of improving the development effect. The outcomes aquired are as follows: Multiple cores with different low and super-low permeability were selected to perform seepage experiments by gas, water and oil. Three fields of flow were observed in the reservoir at different low and super-low core permeability. They are pseudo- elastic flow, transition flow and plastic creep flow. So the concept that there was no correlation of rocky absolute permeability with fluid properties that pasted itself was broken up. Two-phase seepage of water displacing oil in uniform super-low permeability shows that the two-phase seepage zone is narrow.

针对大庆油田扶、杨特低渗透油层砂岩孔隙喉道的大小和形态以压实再生型片状、弯片状喉道分布较广，压实、缩小型细喉道型，微孔不可流动的孔隙体积所占总孔隙体积的比例较大的特点；及储层泥质含量高，注水开发中压力敏感性强、微孔隙欠饱和及水锁效应显著，导致流体渗流阻力增大的问题，本文采用室内实验、理论推证和矿场应用相结合的方法，研究、分析了流体非线性渗流特征，更深刻地揭示出小孔包围大孔的机理及产生原因，并提供了改善开发效果的新的技术方法，取得如下成果：选择不同渗透率的低渗透、特低渗透岩心，进行了气、水和油单相渗流实验，揭示出当岩心渗透率不同时，油层内的流体呈现出拟弹性流变、过渡流变、塑性蠕变三种流变区，从而打破了岩心的绝对渗透率与通过岩心流体性质无关的观点；同类特低渗透岩心的水驱油两相渗流实验表明，两相渗流区较窄。

The optimum conditions of extracting WUAX by Ba2 are as follows: WUS (the water unextractable substance that removed protein and starch):Ba2 is 1:188, the extraction temperature is 63°C, the extraction time is 3h, the extraction rate is 31.60%.

Ba2提取WUAX的最佳工艺条件为：料液比1：188，提取温度63℃，提取时间3h，提取率为31.60%；方差分析结果显示各因素对提取率影响的模型显著(P.05)，提取温度的平方项对提取率的影响高度显著(P.001)；最佳工艺条件下得到的提取物中WUAX含量为92.09%。

This article analyses the process' specialists, as a result it indicates that by way of selecting the appropriate technological condition, the related problems such as unflat rate and much broken end in the process of manufacture can be successfully solved.

结果表明：通过选择合适的工艺条件，可以成功地解决细旦丝生产中由于条干不匀率偏大而产生的染色A级品率低，生产过程中产品毛丝和断头率较高等问题。

The agitation power consumptions in boiling systems decrease uniformly with the increase of agitation speed, whereas the relative power demand (RPD-the ratio of agitation power input of HEDT for gassed system to that for ungassed system and under the same agitation speed) can maintain at a high level for high gas loadings even when the impeller is operating with a high impeller tip speed. The gas hold-up in the boiling system is much lower than that in the cold gassed system, and the gas hold-up in boiling system increases at first and then decreases with the increase of the agitation power consumption per liquid mass P(subscript m. It implies that the boiling three-phase system has a maximum gas hold-up point. The changes of nucleation site of vapour bubble and the character of suspension of the solid particles with the rotational speed of the impeller are responsible for those behaviors mentioned.

在沸腾条件下，搅拌功率消耗随着搅拌转速的增加有所下降，但HEDT桨具有较高的载气能力，即使在高叶端线速度下，相对功率消耗仍能保持在较高的水平；沸腾体系的气含率随单位质量流体输入功率的增加表现出先增后减的规律，即存在气含率的极大值，蒸汽成核位置和固体颗粒悬浮特性随搅拌功率增加而改变是造成上述行为的主要原因；沸腾体系中的气含率远远低于常温通空气体系。

The results showed that the seed germination rate decreased gradually as the NaCl concentration increased .The seed germination rate and imbibition rate was lowest when the seeds were treated with 200 mmol·L~(-1)NaCl; the recovery rate of ungerminated seeds in 150 and 200 mmol·L~(-1)NaCl had no significant difference with the control and it was more higher than the seeds in100 mmol·L~(-1)NaCl.

的种子，逐日测定萌发率、吸胀率；5 d、10 d后测定种皮和种胚的Na~+、K~+含量；培养15 d后，将含有NaCl的营养液中未萌发的种子分别转入1/4 Hoagland营养液继续培养，测定解除盐胁迫后种子萌发的恢复率；以探索不同浓度的NaCl处理对海滨木槿种子萌发及其种皮和胚的Na~+、K~+含量的影响。

Comparing to conventional resistivity log, the high resolution array induction logging has higher resolution and deeper invertigation. So it could confirm uninvaded formation resistivity, flushed zone resistivity and invasion radius, and also provide reliable geologic parameters for reservoir description and evaluation.

高分辨率阵列感应测井克服了常规电阻率测井纵向分辨率低、探测深度浅和不能解释复杂侵入剖面等缺点，可以准确确定原状地层电阻率、冲洗带电阻率和侵入半径，可为储层描述、储层评价提供可靠的地质参数。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。