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Saturated brine is a major composition of completing fluid for deep exploration well and has serious causticity for casing.

饱和盐水溶液是针对西北地区复杂地层深探井的特殊地层条件研制的试油完井液体系中的主要成分,溶液中的C l-总含量达186000ppm,并且深探井的井底温度高达120~140℃,这种环境对套管具有极强的腐蚀性。

The design characteristic s of modified Dorr clarifier s,some practical technical data and its using result in Qingdao Haijing Chemical Industry Group Co.

阐述了国内盐水澄清桶的设计现状,探讨了设计澄清桶的理论基础,即颗粒沉降速度的求取;介绍了改良型道尔澄清桶的设计特点、若干实用的技术数据及其在青岛海晶化工集团有限公司的使用效果。

Phytase was a kind of enzyme for hydrolyzing phytate to release myoinositol and inorganic phosphate, which would promote the utilization of phosphate, reduce the drainage of phosphate in the dejecta and reduce the environmental pollution.

植酸酶是催化植酸及植酸盐水解成肌醇与磷酸的一类酶的总称。植酸酶添加在饲料中,会将其中的植酸水解成肌醇和磷酸,从而提高了磷的利用率,降低了粪便中磷的排放量,减少了植酸磷对环境的污染。

William Gilpin, who is so admirable in all that relates to landscapes, and usually so correct, standing at the head of Loch Fyne, in Scotland, which he describes as "a bay of salt water, sixty or seventy fathoms deep,four miles in breadth," and about fifty miles long, surrounded by mountains, observes, If we could have seen it immediately after the diluvian crash, or whatever convulsion of nature occasioned it,before the waters gushed in, what a horrid chasm must it have appeared!

威廉。吉尔平在描写风景时真是出色,而且总是很准确的,站在苏格兰的费因湖湾的尖端上,他描写道,"这一湾盐水,六七十英寻深,四英里阔,"约五十英里长,四面全是高山,他还加以评论:"如果我们能在洪水泛滥,或者无论大自然的什么痉挛造成它的时候,在那水流奔湍人内以前,这一定是何等可怕的缺口啊!"

The comparison of hydrolysis-polycondensation reaction and microstructure of ORMOSILs derived by TEOS, MTES, VTES, ETES confirms that the influence of organic group such as methyl, vinyl, ethyl and ethoxyl on the hydrolysis and polycondensation reaction rate depends on several factors including electron-donating capability, size and number of ethoxyl group which can participates polycondensation reaction.

确认甲基、乙烯基和乙基和乙氧基等改性基团对硅醇盐水解-缩聚反应速度的影响是取决于有机改性基团的电负性、尺寸和可水解的-OR基团数目等因素综合作用的结果,其水解速度依MTES>TEOS>VTES>ETES的顺序递减。由于Si原子上可聚合的基团数目减少,导致MTES、VTES和ETES的聚合反应速度降低,而与水解速率失配。

In this dissertation, the weak gels with good thermal stability and/or salt tolerance for use in EOR were prepared from HPAM and aluminium citrate or the compound containing hydroxymethyl groups in aqueous solution. The gelation mechanisms, structure, and properties of the HPAM-AlCA and HPAM-PRIM gels were investigated. For the HPAM-AlCA gelling system, the effects of aluminium : citrate and pH value on the properties of AlCA were systematically studied.

本文以研制高性能价格比的提高石油采收率用聚合物材料为目标,在耐温抗盐水溶性聚合物研究工作的基础上,选择聚合物弱凝胶这一前沿课题为研究对象,对HPAM-柠檬酸铝凝胶的有关基础问题进行了研究,研制出了具有优异耐温抗盐性能的HPAM-PRIM弱凝胶,解决了采用聚合物提高石油采收率的高性能与低成本之间的矛盾。

The experimental results show that it could reduce viscosity and shearing force of mud.When the addition of viscosity reducer is 0.5%,the thinning rate at high temperature will be up to 91.4% for fresh water clay mud.And it has very good salt tolerance and calcium tolerance.It has good viscosity reduction and disgregation in saturated saltwater mud and calcareous mud.Its thermal stability is also good.

研究结果表明:研制的钻井液降黏剂可以显著降低泥浆的黏度和切力,加入0.5%降黏剂的淡水基浆,高温降黏率可以达到91.4%;具有较好的抗盐、抗钙性能,在饱和盐水泥浆和含钙泥浆中也具有很好的降黏作用和分散作用;具有较好的热稳定性。

The hard and insolvable white particle s formed in the brine were composed of protein, which was not decomposed completely, and the tyrosine dissociated in the pa.

通过对白色物质的分析研究发现,这些白色物质的主要成分是酪氨酸和面筋蛋白,是由于面粉中的一些蛋白质未被彻底分解而与酱体中的部分游离氨基酸混合粘附于黄豆的表面,在盐水浸泡下形成较&硬&、难溶解的白点

The results showed that the adhesion between rubber and steel cord increased under unaged,hot air aging or brine aging conditions as the level of cobalt ...

结果表明,随着钴盐用量的增大,在未老化、热空气老化及盐水老化条件下,胶料与钢丝的粘合强度有所提高;在湿热老化条件下,粘合强度由于热量和湿气的交互作用而发生较大幅度的下降,但钴盐用量在10份时粘合强度的下降为最小。综合胶料初始和老化后的应力应变性能和粘合强度,以10份钴盐用量为最佳。

Metallic lithium and its compounds have bright prospects in many fields. In the new century , it will be a new approach to recover lithium from salt lake brines for the industry of lithium salts. The research of phase equilibrium of lithium water-salt system has the very vital significance, not only to electrolyte peroxide solution theory, but also to the development of the saline lake lithium resources.

锂及其化合物以其独特的性质在高科技及传统工业领域中有着广泛的用途,我国有丰富的锂资源,有效地开发和利用这些资源对提高我国锂工业在世界上的竞争力有重要意义,而各种盐水体系的热力学性质则是盐湖提锂技术发展至关重要的理论基础。

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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。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力