产下

The experimental results show that it is necessary to treat the formation with the temporary plugging agent to seal the pay zones for selectively injecting gel into aqueous layers when the effluent water pressure is higher than that of pay zones, or the fractures in oil-bearing zones are much wider than those in the aqueous layer.

在油井水层出水压力高于油层压力或者产油层裂缝大于出水层裂缝情况下，采用笼统注入方式堵水须进行暂堵处理，以封住产油层，使堵剂主剂选择性进入水层。

And has very high thermal and hydrothermal stability. When it is used to prepare catalyst, under catalytic cracking condition, the output rates of ethylene and from ethylene to butylene can reach more than 18% and more than 50% respectively.

该分子筛的结构和活性中心具有很高的热和水热稳定性，它的最显著的特点是，用其制成的催化剂在催化热裂解条件下，乙烯产率可达18％以上，乙烯～丁烯产率可达50％以上。

Chlamydospore productions in different culture time were compared under the same condition. Chlamydospore sporulation of T-33 was fast. The yield of chlamydospore was highest.

对这6个菌株在同一培养条件(100ml三角瓶装入50ml PD培养液，每瓶接种2个活化2d的5mm直径的菌片，pH自然，30℃，120r/min)下不同培养时间厚垣孢子的产量进行了比较，发现T-33菌株产孢速度快、产孢量最高(2×10~6个/ml)。

Quantitative RT-PCR results showed that HTF1 is involved in the conidiation pathway,Htf1 mutant is not de-repressed in conidiophore development under non-conducive conditions.The observed phenotype of enhanced conidiophore development in the htf1 mutant may result from its defect in conidium development.It is possible that some feedback signal from conidia may inhibit further conidiophore development in M.grisea.

定量RT-PCR的结果也表明HTF1参与产孢信号途径。htf1突变体在不利于产孢条件下并没有去抑制分生孢子梗的发育，因此htf1突变体产生比野生型菌株数量更多的分生孢子梗可能是由于其无法形成分生孢子的原因导致的，这也似乎预示了在稻瘟病菌中很有可能存在一些来自分生孢子的反馈信号以进一步抑制分生孢子梗的发育。

Four white-rot fungi, Pleurotus eryngii, Polyporus versicolor, Pleurotus ostreatus and Fomes lignosus, are tested for their abilities to produce lignin peroxidase, manganese peroxidase and laccase in N-limited and N-rich media with shake culture. The four white-rot fungi only produce manganese peroxidase and laccase. Pleurotus eryngii and Pleurotus ostreatus are selected, due to their high enzyme activities, for the degradation and decolorization of alkali lignin.

首先观察了四种白腐菌Pleurotus eryngii，Polyporusversicolor，Pleurotus ostreatus和Fomes lignosus在限氮和富氮培养基中振荡培养产木素过氧化物酶、锰过氧化物酶和漆酶的能力，由于Pleurotus ostreatus和Pleurotus eryngii产酶能力较强，用于碱木素的降解脱色效果较好，二者在限氮条件下11天对碱木素降解脱色率为65%和72%。

The experimental result showed that three byproducts was formed and the optimal condition was as follows: the molar ratio of ethylene glycol, hydrogen bromide, and acetic acid was 1:1:1.3, when ethylene glycol was 1 mol, refluxed 5 h under the action of 100 mL toluene.

结果表明：较适宜的合成条件为乙二醇1 mol， n：n：n=1：1：1.3，在带水剂甲苯(100 mL)的作用下，回流反应5 h，约4 h后分两次追加0.12×2 mol醋酸酐，合成效果最好，产率可达到95%，反应副产2-溴乙醇及少量的1， 2-二溴乙烷、乙二醇二乙酸酯和二乙二醇二乙酸酯。

Methods By using the theories of conservation of mass, of energy, Darcy's law and hydrokinetics, the mechanical model of oil layer fluid under the function of low frequency vibrated wave was studied. With the combination of indoor experiment and the numerical simulation, the effect of downhole low frequency vibration on oil viscosity, interfacial tension, capillary pressure, producing water cut and the rising velocity of it was studied quantitatively.

应用质量守恒定律、能量守恒定律、达西定律、流体动力学等基本原理研究了低频振动波作用下油层流体的数学模型，将室内实验和数值模拟技术相结合定量地研究了低频振动对原油私度、界面张力、毛管压力、产水率及产水率上升速度的影响。

It was shown by the results that when the cellulose dosage was 0.15FPU/g substrate, combined with the concentrations of CTAB, SDS, Tween 80 or rhamnolipid of 1 cmc in organic solvent mediae, the maximum yields of reducing sugar were obtained,respectively.

结果表明，纤维素酶用量为0.15FPU/g底物时，CTAB、SDS、Tween 80和鼠李糖脂浓度均为1cmc时，有机相体系形成逆胶束，此体系下酶解过程糖产率最高，其中添加鼠李糖脂可使还原糖产率达到198.03mg/g底物。

Cows in the perinatal period were used in the experiment.Through clinical symptom and laboratory examination, they were divided into five groups that were healthy multiparity cows,healthy primiparity cows,cows with fatty liver disease, cows with ketosis and cows with rtention fetal membrance. We experimented blood of antepartum 15,8,1 day and postnatal 1,8,15,22 day,then assayed Thyroid hormone, thyroid-stimulating hormone, Iodine ,Selenium, GSH-Px in blood-serum. At last,we analysed data by statistical way .

本实验以处于围产期的57头奶牛为研究对象，通过实验室检查结合临床症状查出其中健康的经产牛、健康的初产牛及患酮病、患脂肪肝、患胎衣不下的自然病例，在奶牛产前15天，产前8天，产前1天，产后1天，产后8天，产后15天和产后22天分别采颈静脉血，检测血清中甲状腺激素(T4和T3)、促甲状腺激素、碘、硒和谷胱甘肽过氧化物酶的含量、摸索出其动态变化并作了统计分析。

The optimum conditions were reaction temperature 120°C, reaction time 20h, mole ratio of 5-chloromethyl-2-oxazolidinone and sodium phenolate 1:1. 3,5-Dimethylphenol and epichlorohydrin in sodium hydroxide were condensated to give l,2-epoxy-3-phenoxy propane, then the reation of l,2-epoxy-3-phenoxypropane and the carbamate afforded oxazolidinone in the yields of 69.0%~76.0%. The side reaction had been avoided effectively by the uses of the excessive epichlorohydrin and mixed catalysts.

用3，5-二甲基苯酚和环氧氯丙烷在氢氧化钠存在下缩合生成苯氧基环氧丙烷，然后和氨基甲酸酯反应生成噁唑烷酮，采用过量环氧氯丙烷和使用混合催化剂，有效的避免了副反应的发生，提高了噁唑烷酮的产率，产率69.0%～76.0%。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。