多酸的

Requests on resistance of corrosion destructibility of sealing interfaces that related to sealing up and cementing exercises in petroleum engineering are more and more of rigidity. It is urgently needs to resolve all sorts of problems that affect interface bonding quality. Conventional cement slurry design resist the destructive function worse, and can't like to satisfy the request to carry on latter production such as perforation, acidify, fracture etc.

常规油井水泥抵抗破坏的性能较差，不能很好满足水泥环抗冲击振动以及射孔、压裂等各种变形破坏的要求，这在一定程度上限制了小间隙、大位移、定向与水平井等特殊钻井工艺技术的发展，也制约了后期压裂、酸化等诸多开发工艺措施的实施。

Based on phylogenetic analysis, this paper reviewed the relationship between hormones including sex hormones and AVT, and vocal production and perception through all anuran species studied to date. We found that in anuran brains the AVT system related to vocal behaviors were very conservative while the sex hormone systems involved in vocal communication might be originated independently from varied taxa of anuran.

本文通过对已做相关研究的所有物种进行系统发育分析，发现中枢神经与鸣叫行为相关的精氨酸加压素系统具有高度的进化保守性，而与鸣叫相关的性激素作用系统可能是多次独立起源的。

Result:Together use of azone 2%,menthol 2% and camphol 1% has the best transdermal enhance effect of the absorption of diclofenac sodium, of which azone has the strongest effect on percutaneous absorption of diclofenac sodium.

氮酮是目前应用最广泛的透皮吸收促进剂之一，薄荷醇和冰片是近年研究较多的萜类透皮吸收促进剂的代表［1］，薄荷醇和氯酮对双氯芬酸钠的促透作用已有研究［2，3］，但三者联用的促透效果未见文献具体报道。

Substantial researches on lanthanide carboxylate complexes have been investigated in the last two decades with rapid development of single-crystal diffraction technique; however, most of which merely are with a view to single or sporadic studies.

随着单晶衍射技术的快速发展，近年来稀土羧酸类配合物晶体结构的研究日益兴起，但大多数的研究仅仅着眼于单一或零星研究，系统性的研究工作不多。

Methods Three doses of etomidate were administered intraperitoneally. Five minutcs later, convulsion was induced by electricity or drugs . The convulsant latency, duration of tonic state, incidence of convulsion, mortality and survival time were noted.

以电刺激或致惊剂〔士的宁、N-甲基－D-天冬氨酸、利多卡因〕建立不同类型的小鼠惊厥模型，观察腹腔注射3种剂量的依托咪酯对小鼠强直性惊厥潜伏期、持续期、惊厥发生率、小鼠死亡率以及小鼠存活时间的影响。

Methods Three doses of etomidate were administered intraperitoneally.Five minutcs later,convulsion was induced by electricity or drugs ［strychnine.N-methyl-D-aspartate.lidocanine］.The convulsant latency,duration of tonic state,incidence of con-vulsion,mortality and survival time were noted.

以电刺激或致惊剂〔士的宁、N-甲基-D-天冬氨酸、利多卡因〕建立不同类型的小鼠惊厥模型，观察腹腔注射3种剂量的依托咪酯对小鼠强直性惊厥潜伏期、持续期、惊厥发生率、小鼠死亡率以及小鼠存活时间的影响。

Due to large amount impurity in ammonium fluoaluminate which is used as raw material for the production of fluoride salt ,the smooth operation and the quality of cryolite are affected.

用氟化盐生产的原料氟铝酸铵中机械杂质多，影响了车间正常生产和冰晶石产品质量的现状，提出使用弧形筛过滤料浆，除去其中的机械杂质，来解决上述问题的方案，经生产试用，效果良好，取得了很好的经济效益。

Miltiorrhiza depside salts in beagle dogs, the high AUC was obtained for LSB with a steady high concentration in blood during the infusion. 3. Pharmacokinetics of S.

静脉滴注丹参多酚酸盐的给药方式下，丹参乙酸的药时曲线下面积明显高于同剂量下静脉注射或皮下注射方式的AUC，丹参乙酸在滴注给药期间维持稳定的峰浓度。

By depression there is a decreased amount of neurotransmitters in parts of the central nervous system, mainly deficiency of serotonin, but also to some extend of noradrenalin, acetylcholine, dopamine or gamma-amino-butyric acid, or the nerve cells do not react properly by stimulation from neurotransmitters.

忧郁症是有减少金额递质部分的中枢神经系统，主要缺陷serotonin，但也有一些扩大肾上腺素，乙酰胆碱，多巴胺或伽玛-氨基丁酸或神经细胞得不到适当的反应的刺激神经。

BACKGROUND: Based on documents abroad and home, both alginic acid and carbomer are used to prepare gel matrix of lithium carbonate tablets; furthermore, hydroxypropyl methyl cellulose, a kind of water-soluble skeletal material, can be used as controlled release matrix of lithium carbonate tablets.

摘要背景：目前国内外文献报道的碳酸锂缓释片多采用海藻酸、卡波姆等制备凝胶型骨架片，同样作为水溶性骨架材料的羟丙基甲基纤维素，也可作为碳酸锂的缓释基质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。