四重
- 与 四重 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Effect of de-astringent and crispness-keeping on Mopan persimmon of vacuum packing ;2. The paper introduces the method for preserving the fresh rare birds eggs using ozone sterilization and vacuum packing ,and describes the optimum technological process and parameters after a comprehensive analysis and study of the egg's weight-reduced rate,egg white index,and yolk index and it's pH value,i.
采用臭氧杀菌真空包装的方法进行乌鸡蛋的保鲜,综合鸡蛋减重率、蛋白指数、蛋黄指数和蛋黄pH值四项指数进行分析和研究,确定采用此工艺的最佳工艺流程和参数:过氧乙酸溶液预杀菌浓度为0 5%,臭氧杀菌3min,选用Ny/PE复合袋在真空度600mmHg下进行真空包装,保鲜期为7个月,好蛋率95%以上。
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The synthesis method of the invention is as follows: first, 5-amino-2-(p-aminophenyl)- benzoxazole and aliphatic diacid are respectively recrystallized; NMP is distilled; solubilizer is dried; second, in an atmosphere of nitrogen, after Py and NMP are mixed evenly and added to a sealed reactor, the solubilizer is added into the reactor, followed by the 5-amino-2-(p-aminophenyl)- benzoxazole, then the mixture in the reactor is stirred; second, in an atmosphere of nitrogen, the mixture in the second step is stirred and heated to 50-150 DEG C, then the aliphatic diacid is added, followed by TPP for condensation; fourth, after methanol is poured into the reactor, the sediment is separated out from the mixture, filtered, washed and dried, so the semi-aromatic polyamide containing oxazole ring is obtained.
本发明的合成方法如下:一、分别重结晶5-氨基-2-苯并唑与脂肪族二酸;蒸馏NMP;干燥增溶剂;二、在氮气气氛下,Py与NMP混匀后加入密封的反应器中,再加入增溶剂,然后加入5-氨基-2-苯并唑,搅拌;三、在氮气气氛下,将步骤二的混合液搅拌并升温至50℃~150℃后加入脂肪族二酸,再加入TPP后缩聚;四、再倾入甲醇析出沉淀,过滤,清洗沉淀,再干燥;即得到含唑环半芳香聚酰胺。
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For the prototypal instance in 40 eld Horizon re-creates a disputable perception disadvantage experiment.
这是四十年来《地平线》节目第一次重做这个颇具争议的感官剥夺实验。
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Oil of housing card Rotella T5W/40 is a kind of complete synthesis engine of heavy load derv is oily, function satisfies engine of derv of all four-stroke loop to produce business demand.
梗概: 壳牌Rotella T5W/40油是一种全合成重负荷柴油发动机油,性能满足所有四冲程循环柴油发动机生产商要求。
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Finally, this study makes five suggestions:(1) Reinforce the consciousness and the specialistic techniques of the workers.(2) The workers must empower clients.(3) Stress the treatment in consultation.(4)Differentiate the type of clients who are sheltered.(5) Perfect the services and the policy about family treatment. We hope it can help for the treatment pattern for teenage prostitutes in the sheltery organization and prevent the teenage prostitute more successfully.
最后提出五点建议:一、加强工作人员的自我觉察能力与专业技巧;二、工作人员要有增进个案充权的概念与行动;三、著重辅导层面的处遇;四、区分安置的个案类型;五、健全家庭处遇的服务与政策;期供性交易少女安置处遇之参考,冀使儿少性交易防制工作更臻落实。
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New reactions found in this program include: photoinduced regioselective free radical addition to aromatic imines;photoinduced Dielse-Alder reactions of aromatic imines for synthesis of tetrahydroquinoline derivatives;Photoinduced radical cation mediated selective ring opening reaction of epoxides;Formation of novel macrocyclic crown ethers by photoinduced reaction of diazonaphthaquinones;photoinduced selective desilylation of silyl ethers.
用这种方法成功的发现了下列在有机合成中有意义的新反应:(1)光诱导产生的自由基正离子诱导的自由基对芳香亚胺的区域选择性加成反应;(2)用光诱导的芳香亚胺的Diels-Alder反应合成四氢喹啉衍生物;(3)经光诱导产生的自由基正离子基诱导的环氧化物选择性开环反应;(4)重氮萘酮在环醚中经光诱导反应形成新奇的大环冠醚;(5)硅醚的光诱导选择性脱硅基反应。
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His paper deals with the purification of tetrabromoethane by continuous countercurrent scrub-bing with annular centrfugal extractor.
研究了离心萃取器的转速和重相堰直径在四溴乙烷一水体系中对洗涤效果的影响,并得到了优化参数。
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2AN oxygen radicle benzene Mao water solution reaction process in, the hydrogen bromine is sour with acetic acid Mo Er compare for 1:be tetrahydroxy and 2 mols at 1:00|weigh to crystallize in the L hydrochloric acid aqua, the product accepts to lead superior turn
甲氧基苯醌水解反应过程中,当氢溴酸与醋酸摩尔比为1:1时,四羟基苯醌与2mol/L的盐酸溶液中重结晶产品收率最佳
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The fourth part is to propose triply analyses to the question.
第四部分是对问题的三重建议分析。
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An inferior quality in the administration of personnel file, which finds expressions in a lack of individuality and innovation as well as a fake and inaccuracy in the contents and the superiority of politics over the professions. 2. A dissociation of personnel from file which results in an increase in unsolved files. 3. an unadjustment of the personnel file to the new situation which leads to a multiple of management featured by the "file following personal".
通过大量的调查研究,作者认为人事档案目前明显存在的问题主要有:一、人事档案材料内容质量不高,表现为千人一面、缺乏个性,更新滞后、内容陈旧,把关不严、难辨真伪,重政治轻业务等;二、人档分离现象日趋严重,&无头档案&增多;三、人事档案管理体制不适应新的形势,表现为管理体制上是多头管理,管理体系上仍为传统的三大类管理,管理方法上&档随人走&,管理模式上实行封闭式管理;四、人事档案管理方式陈旧、手段落后,仍以手工操作为主。
- 推荐网络例句
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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。
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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。
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When I was in school, the rabbi explained everythingin the Bible two different ways.
当我上学的时候,老师解释《圣经》用两种不同的方法。