查询词典 water strider

There are many ways to treat coking waste water, but few is well. The pectic and PAN Activated Carbon Fiber with modifiled is used to treatesd coking waste water.

目前在焦化废水的处理上有多种方法，但对这些难降解有机物的去除都存在一些问题。

Finally, the crystallization metastable zone of cefazolin sodium pentahydrate in water and the mixture of water and 2propanol at different temperatures was determined by the laser method. Valuable thermodynamics data for the industrial manufacture of cefazolin sodium pentahydrate were obtained.

本文测定了5～35℃范围内头孢唑林钠在不同配比的水乙醇、水丙酮、水异丙醇混合溶剂中的溶解度数据，采用热分析仪测定了头孢唑林钠的差热分析数据，推导了头孢唑林钠溶解度模型，为头孢唑林钠的结晶分离提供了热力学数据。

Finally, the crystallization metastable zone of cefazolin sodium pentahydrate in water and the mixture of water and 2 propanol at different temperatures was determined by the laser method.

头孢唑林钠(cefazolin sodium pentahydrate，CSP；结构如Fig.1所示)是第一代抗菌活性较强、临床上较常应用的半合成广谱头孢菌素抗生素。

Finally,the crystallization metastable zone of cefazolin sodium pentahydrate in water and the mixture of water and 2propanol at different temperatures was determined by the laser method.Valuable thermodynamics data for the industrial manufacture of cefazolin sodium pentahydrate were obtained.KEY WORDS Cefazolin sodium pentahydrate;Crystallization;Thermodynamics;Metastable zone

本文测定了5~35℃范围内头孢唑林钠在不同配比的水乙醇、水丙酮、水异丙醇混合溶剂中的溶解度数据，采用热分析仪测定了头孢唑林钠的差热分析数据，推导了头孢唑林钠溶解度模型，为头孢唑林钠的结晶分离提供了热力学数据。

With 5 plants including Lindernia rotundifolia, Cryptocoryne crispatula, Hygrophila stricta, Microrium sp. and Peperomia sandersii as the tested materials and the highest eutrophic lake water from Guishui Lake in Yanqing County in Beijing City as the matrix of plant growth, 3 test groups with high, middle and low input density were set up to study the effect of input density of aquatic plants on the purifying efficiency of the eutrophic lake water.

方法］以小瓜子、缎带椒、中柳、皇冠和西瓜草5种植物为试材，以北京市延庆县妫水湖8月份富营养化程度最高的湖水为植物生长基质，设高、中、低3个投放密度试验组，研究植物投放密度对富营养化湖水的修复效率影响；通过测定水样中总磷酸盐、总氮、氨氮和硝态氮的浓度变化，确定植物修复的最佳效率。

The invention relates to a fabric nanometer following cleaning agent for obtaining TiO2/ZnO composite hydrosol, and relative production and cleaning method, wherein it uses butyl titanate and zinc acetate as predecessor, uses glacial acetic acid as catalyst and peptizer, uses water as solvent, uses absolute ethyl alcohol as the solvent of butyl titanate, and uses ethanolamine as deposit agent and supplies OH-, to be hydrolysed and polycondensated to form TiO2/ZnO composite hydrosol. And its components and mass percents are: butyl titanate at 1-15%; zinc diethyl at 1-12%; absolute ethyl alcohol at 1-20%; glacial acetic acid at 5-15%; and aminoethyl alcohol at 0.1-5%, and the left is water. The invention has lower cost and simple process.

本发明涉及一种可以得到TiO 2 /ZnO复合水溶胶的纺织品纳米后整理试剂及其制备工艺及对织物的整理方法，以钛酸丁酯和乙酸锌为前驱物，冰乙酸为催化剂和胶溶剂，水为溶剂，无水乙醇为钛酸丁酯的溶剂，乙醇胺为沉淀剂并提供OH -，经过水解、缩聚反应形成的TiO 2 /ZnO纳米溶胶整理剂，其组分和重量百分比含量如下：钛酸丁酯占1～15％；二水乙酸锌占1～12％；无水乙醇占1％～20％；冰乙酸占5％～15％；乙醇胺占0.1％～5％；水余量，具有耐洗性、无毒、无刺激、成本低廉、制作工艺简单可靠的优点，可实现对对织物的抗紫外、抗菌、抗静电功能整理。

The response of gas exchange parameters such as net photosynthesis rate, transpiration rate, water use efficiency of leaf, stomatal conductance and intercellular CO2 concentration of 2-years old Periploca sepium Bunge to different soil water content were studied in Loess Plateau with CIRAS-2 portable photosynthesis system.

在半干旱黄土丘陵区，采用CIRAS-2型光合作用系统，在不同土壤水分条件下，对2年生杠柳的净光合速率、蒸腾速率、叶片水分利用效率、气孔导度和胞间CO2浓度等叶片气体交换参数的日变化进行了研究。

Though studying the rate of permeable salt of two-pass reverse osmosis system,the effects of feed water pH value, permeant flux ,feed water conductivity on the permeable salt rate of the system are analyzed and the change regular of permeable salt rate along with the three factors is summarized.

以二级反渗透系统的透盐率为研究对象，分析了给水pH值、产水通量、给水电导率对系统透盐率的影响，总结了透盐率随三个因素的变化规律，比较得出了其中给水pH值对透盐率的影响最大的结论，且给水pH值为弱碱性条件下的透盐率最低

The suitable reaction parameters were found that mole ratio of potassium persulphate to sodium sulfite,mole percent of initiator and mole percent of BS relative to total monomer, mass percent of total monomer in water, mass percent of surfactant in water, reaction temperature,pH value and reaction time are 3:1,0.06%, 1.45%,20%,5.5%,50 ℃,6 - 7 and 12 h, respectively.

研究得到了适宜的反应条件：n（K2S2O8）：n（Na，SO3）=3：1，引发剂和Bs相对于单体总量的摩尔分数分别为0.06％和1.45％，总单体在水里的质量分数为20％，SDS在水里的质量分数为5.5％，pH=6—7，反应温度50℃。

Pharmaceutical engineering equipment, purified water secondary ro device, mixed bed system, EDI hot-water disinfection system, quality reaches the national pharmacopoeial requirements, through the pharmaceutical GMP certification.

医药行业纯化水工程设备，二级反渗透设备，混床系统，EDI热水消毒系统，水质达到国家药典要求，通过药厂GMP认证。

Wenxing consistently adheres to the principle of "trict Management,All Member Participation,Quality First,Users Foremost" and follows the business philosophy of excellent quality,highly active and pursue excellence,thus outdoing its counterparts in terms of technology,production scale and administration.

文兴一贯秉承&严格管理、全员参与、质量第一、用户至上&的企业方针，遵循优质、高效和追求卓越的经营理念，从而实现在技术上、规模上、管理上处于同行领先地位。

The left atrium of the guinea pigs was innervated by the two afferent system.

豚鼠左心房受心脏的两个传入系统的双重支配。