According to the special requirements of offshore oil field development and the theoretical calculations, the paper analyzes the difference between heating method and gas injecting method in viscous oil production and discusses the feasibility of reinjecting natural gas in development of offshore undersaturated viscous oil field .

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Through strong turbulence in stilling basin the water with high concentration TDG mixes with the low concentration water, so dissolved gas in the part of water in stiffing basin become supersaturation.

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The injured gill cells had a different ultrastructure, with endoplasmic reticulum dilated and vesiculated, mitochondrial cristaes partially disintegrated, gill fibre cuticles denatured and dropped. The ultrastructural damages to hepatopancreatic cells were characterized by the decrease of microvilli, swelling and breaking up of mitochondria, expansion of endoplasmic reticulum, disruption and vacuolization of nucleus, tumefaction of nuclear membrane and increase of lipid droplets. As for the toxicological changes of myocardial cells, the mitochondria were swelling, having a lot of vacuolus and disintegrating, while the myofibrils were irregular with endoplasmic reticulum dissolved.

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The solubility of the novel polyamides are greatly improved compared with the conventional aramids, especially the polyamide with dendritic blocks of the second genernation as side chains are soluble in most of the common organic solvents such as ether, ethyl acetate, chloroform, acetone, tetrahydrafuran etc.

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Are specializing in the design, production of industrial equipment and auxiliary gas, dissolved acetylene equipment (seamless, welding, dissolved acetylene, liquefied petroleum, natural gas and other gas cylinders) Chemical Equipment and accessories, all kinds of gas Filling Units, bus high-purity, specialty, medical gas cylinder seamless vacuum devices do bath, stainless steel PTFE metal software, bellows, industrial gas high, medium pressure valves, the fittings in the gas, industrial gases pallets, providing liquid oxygen, liquid nitrogen, liquid argon, liquefied petroleum, liquefied natural gas, two ice machines, to undertake air separation, acetylene equipment¨and renovation project as well as standard gas, mixed gases, specialty gases, high purity gases configuration and installation industry.

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The alkali solution concentration and steam explosion process condition were optimized by testing the solubility of soft cellulose after steam explosion before and after treatment towards aq.NaOH with various concentration. It was concluded that the soft cellulose can dissolve in the 9% aq.NaOH solution completely under the condition of explosion pressure 3.0Mpa and explosion time 60s. At the same time, the influence of sweller-thiourea on the new aq. alkali soluble cellulose/NaOH solution was studied in this paper. The dissolving phenomena and the steam explosion mechanism of soft cellulose were discussed.

本文通過(guò)對(duì)閃爆前后軟木纖維素在不同濃度的稀堿溶液中溶解度的測(cè)試分析在线激情A片，優(yōu)化了堿溶液濃度和最佳閃爆工藝條件，得出在閃爆壓力超過(guò)3.0MPa91做a免费视频，保壓時(shí)間為60s的條件下欧美中老年性生活网站，軟木纖維素可完全溶解于9％的NaOH稀堿溶液中，并且對(duì)助溶劑-硫脲對(duì)堿可溶纖維素/NaOH水溶液的增溶效果進(jìn)行了研究和探索视频一区二区红樱桃网站，同時(shí)也對(duì)溶解機(jī)理和閃爆機(jī)理進(jìn)行了分析討論精品国产自在现线国语自产在线。

In the business card printing and membership card making products surface coated gloss began in the late 19th century, when the processing is among the volatile oil and resin are dissolved, and use the brush to the molten liquid coating printed matter, and finally in normothermic so that it is dry.

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To improve the effect of CDCA on dissolving cholesterol gallstone, the water-soluble copolymers as polycarboxylic acid of comb-like copolymers and C_(60)-PCC were synthesized, which being used for modification of CDCA and strengthening effects of CDCA on dissolving the cholesterol gallstones by their entropy-repelled properties of comb-shaped side chains in buffers of phosphate and in model bile.The design theory of polymer was mainly employed to synthesis the conjugate of PCC-CDCA and C_(60)-PCC-CDCA by C_(60), polyoxyalkylene allylalkyldiether and maleic anhydride, which were copolymerized with AIBN as initiator, and then PCC or C_(60)-PCC were reacted with CDCA. The structures of the copolymers and the conjugates of PCC-CDCA and C_(60)-PCC-CDCA were confirmed with IR, TLC and TEM. The dissolving effects and the dissolution kinetics mechanism of cholesterol gallstone was inverstigated in PBS and in model bile of different cholesterol saturated index at pH7.4, including PCC-CDCA or C_(60)-PCC-CDCA.

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The copper-bearing alloy phase is solution when react with electrolyte forming the cavity while the anodic oxidation proceeding, rest of the alloy forming island in the cavity.

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Meanwhile, wire-feeding velocity of the core wire was confirmed through applying numerical calculation, which was verified with actual wire-feeding velocity used in production.

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