查询词典 acid treatment

Methods 4-Hydroxy- benzonitrile was treated with sodium hydrogen sulfide and anhydrous magnesium chloride in dimethyl formamide to give thioamide, which was then directly cyclized with ethyl 2-chloroacetoacetate without separation to give ethyl 2-(4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(2) in one-pot; then 2 was formylated with Duff reaction adopting hexamethylenetetramine in trifluoroacetic acid to give ethyl 2-(3-formyl-4-hydroxyphenyl)-4-methylthiazole-5-carboxylate(3); finally, the target compound was obtained by the treatment of 3 with hydroxylamine hydrochloride and sodium formate in formic acid.

采用&一勺烩&方法，以4-羟基苯甲腈为起始原料，首先与硫氢化钠和无水氯化镁在N，N-二甲基甲酰胺中反应，所得中间体不经分离，直接加入2-氯乙酰乙酸乙酯进行环合反应，得到2-(4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（2）；然后通过六亚甲基四胺/三氟乙酸进行Duff反应，得到2-(3-甲酰基-4-羟基)苯基-4-甲基-5-噻唑甲酸乙酯（3）；再经盐酸羟胺/甲酸/甲酸钠体系脱水得到目标化合物。

"Long-term skin cancer and actinic keratoses surveillance continue to be important,and repeated resurfacing procedures or courses of topical agents,such as fluorouracil or imiquimod, may be necessary," the researchers write."A largerstudy comparing trichloroacetic acid resurfacing for actinic keratoses reductionand nonmelanoma skin cancer prophylaxis would help validate the superiority ofthis resurfacing technique over the carbon dioxide laser andassess its cost-effectiveness compared with photodynamic therapyor imiquimod treatment." They cite improved patient compliance in the trichloroacetic-acid group, ease of performance in the outpatient setting, andsubjective measures of better tolerance as reasons this procedure is an attractive alternative to repeated courses with topicalagents or laser resurfacing.

研究者指出，长期皮肤癌和光化性角化病之监测仍是重要的，反覆的皮肤重建整形步骤、或外用制剂如fluorouracil 或 imiquimod的反覆疗程也可能是必须的；一个比较三氯醋酸皮肤重建整形以减少光化性角化病和预防非黑色素皮肤癌的大型研究，将可有助於确定其优於二氧化碳雷射的优势，以及评估其和光动力治疗或 imiquimod治疗之花费效益比比较；他们举例说，三氯醋酸组病患之遵医嘱性增加、门诊病患也容易进行、个案之测量耐受度比较佳，这些都是重复疗程时比外用药剂或雷射更有吸引力的理由。

Commutative ion resin of strong acid instead of hydrochloric acid neutralized sodium hydroxide meliorated step of subsequent treatment.

用强酸型离子交换树脂代替盐酸中和氢氧化钠对产物的后处理步骤进行了改进。

Ring, including high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial self-suction pump acid pH, vertical centrifugal pipeline Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pumps, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

Ring, including high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial self-suction pump acid pH, vertical centrifugal pipeline Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pump, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

Including Ring high pressure air, FRP acid pH blower, electromagnetic pump, auto-powder-bubble machine, sludge dewatering machine, coaxial vortex pumps, chemical liquid filters, coaxial acid pH self-suction pump, centrifugal vertical pipe Pumps, water-dirt pumps, horizontal direct-pumped, Shen stainless steel water pump, Gear pumps, two high-speed pumps, automatic booster pumps, automatic pressure booster pump, building water supply submersible pumps , Multi-Purpose centrifugal pumps, computer frequency constant pressure pump, electronic constant pressure booster pumps, reciprocating washing machines, pressure-pumping interactive tied, tied for interactive frequency constant pressure pump, stainless steel deep-well pump, dust collection machines and dust collection Equipment, gas-casual, casual trachea, and many other environmental chemical equipment and sewage treatment works, such as the planning design and construction.

包括环形高压风机，FRP耐酸硷送风机，电磁气泵，自动型粉体泡药机，污泥脱水机，涡流式同轴抽水机，化学液体过滤器，同轴自吸式耐酸硷泵浦，立式管道离心泵，沉水式污物泵，卧式直接式泵浦，沉水不锈钢泵，齿式水泵，两段高速泵，自动增压泵，压差式自动增压泵，大楼给水潜水泵，多段式离心水泵，电脑变频恒压泵，电子恒压增压泵，往复式清洗机，压差式交互并列泵浦，变频恒压交互并列泵浦，不锈钢深井泵，集尘机及集尘设备，散气盘，散气管等各式环保化工设备及污水处理工程的规划设计施工等。

In order to prevent the acid sludge forming during acidizing treatment for Putaohua formation in Daqing peripheral oilfield, the research on colloid and bitumen in oil, acid system, ferric ion and anti -sludge agent has been carried out to determine the possibility of sludge forming.

从立足于研究大庆外围葡萄花油层原油防止酸渣形成的方法入手，从原油胶质沥青质、酸液类型、三价铁离子和各种类型的抗渣剂等方面，考察了大庆外围葡萄花油层的原油与酸接触，形成酸渣的可能性。

The new acid system can stabilize the ferric ions, furthermore it can prevent the acid sludge forming during acidizing treatment, also can eliminate sulphide scale.

实验表明螯合酸对于高含碳酸盐岩砂岩储层具有很好的酸化效果，对于高含酸敏性矿物而碳酸盐岩含量较低的砂岩储层酸化效果有限，但不会给储层带来二次伤害。

The regulatory effect of corticosteroids treatment on growth factors is mainly at early stage of tendon healing, but hyaluronic acid works at early and late stages. Corticosteroids always facilitate the expression of the growth factor, whereas hyaluronic acid not only promote but also inhibit the expression of growth factor.

皮质激素在肩袖损伤修复过程中对4种因子的调控主要在早期；透明质酸在修复早期、后期均有不同程度的作用；皮质激素的调控作用主要是促进生长因子的表达，而透明质酸存在双向调控作用。

Metal corrosion in sulfuric aeid edw point is a common and very serious harm go the corrosion forms, in a wide range of production in all aspects of life, especially in some specific process unit operation equipment middle.low-temperature corronsion dew point in the general industrial rurnace, boiler, fuel saving edvices, air preheater, heat exchangers, tower refrigeration systems, dust, garbage incineration furnace, sintering furnace flue and chimney acid plant and the wind tunnels of hypothermia sife, yes containing gurnace flue and chimney acid plant and wind tunnels of hypothermia site, yes containing acidic gases produced by the condensation of cold treatment from the local cold drinks along with the liquid in the device, lesding to a very serious material corrosion.

金属材料的硫酸露点腐蚀是一种常见的，危害十分严重的腐蚀形式，广泛的发生在生产生活的各个方面，尤其发生在一些特定的过程单元操作设备中间。低温露点腐蚀一般发生在在工业加热炉、锅炉、燃料节省器、空气预热器、热交换器、塔顶冷凝系统、除尘器、垃圾焚烧炉、烧结炉、烟道，烟囱及酸厂的引风管道等的低温部位，是含酸性的气体经由该产遇冷冷凝下来的冷饮液局部地随着于设备上，从而造成对材料极严重的腐蚀。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。