查询词典 modification

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.

离子交换纤维的比表面大，对金属离子具有吸附选择性高、应用形式多样等特点，是近年来发展迅速的新型吸附材料[1~5]。

A chelating fiber with amidoxime functional groups had been prepared from PAN fibers through processes of pre-treatment, crosslinkage and modification.

0引言偕胺肟基螯合剂由于对某些贵重金属[1]、稀土金属[2]具有良好的吸附作用，已成为人们研究的重点。

Chelate fiber with amidoxime group,which is obtained from chemical modification of PAN fiber,is treated with mercury nitrate to prepare anion-exchange fiber.The optimum conditions of the anion-exchange fiber absorption of the thiocyanate ion,such as ion concentration,time,the pH value were studied.

以聚丙烯腈纤维进行NH2OH化学改性制得的含有偕胺肟基的螯合纤维为原料，经Hg(NO3)2化学处理，制得阴离子交换纤维；并以硫氰酸根离子为研究对象，系统地探讨和研究了阴离子交换纤维吸附硫氰酸根离子的最佳条件参数：离子浓度、时间、pH值等。

The glutamine synthetase produced by the engineering bacteria can specially act on NH4 and aminoglutaric acid, the durability to the high concentration ammonium ion has been distinctively improved because of the dissolution of adenosine acylation modification, the major bottleneck of glutamine with enzymatical production has been solved, and the concentration of the obtained glutamine can reach 47.6g/L.

本发明工程菌产的谷氨酰胺合成酶可专一性的作用于NH 4 和谷氨酸，且因解除了腺苷酰化修饰作用对高浓度铵离子的耐受能力显著提高，解决了酶法生产谷氨酰胺的重要瓶颈，生成的谷氨酰胺的浓度最高达到47.6g/L。

Aminolysis Modification and Cytocompatibility of Ester-containing Polymeric Biomaterials

在适当的胺解条件下，采用不同的交联剂对细旦涤纶织物进行了丝素涂膜整理。

Morphine can take lots of pharmacological roles including analgesis,modification of immunal function and neuroendocrine.

吗啡有多种药理学作用，包括镇痛、调节免疫功能和神经内分泌等。

The Phase I tip has simple straight swept or tapered shape, the curve change of the platform is included during Phase Ⅱ, and the geometry of the Phase Ⅲ tip is extended to anhedral modification.

第一层次的桨尖形状为直线后掠或尖削，第二层次包括桨尖平面的曲线变化，而第三层次进入到下反桨尖这种三维变化。

Taking natural anhydrate(anhydrous gypsumⅡ) as major raw material,adding composite activator for modification to adjust setting time,flexural strength and compression strength,then mixed and milled with proper amount of composite water-retention agent,fly ash and air entraining agent to obtain plastering gypsum .

以天然硬石膏为主要原料，掺加复合激发剂进行改性处理，调节凝结时间及抗折、抗压强度，然后辅以适量复合保水剂、粉煤灰掺合料、引气剂等，磨细混匀后即得到抹灰用的粉刷石膏。

Series PT can meet various consumers worked with our Series PW gauges and other imported gauges immediately, which can be compatible with annectent threads and plugs entirely without any adjustment or modification.

PT系列传感器与本厂的PW系列仪表配套使用能满足不同用户的各种要求，也可直接与进口仪表配套使用，不需做任何调整或改动，连接螺纹、引出接插件等全部兼容。

The modification of the asphalt with anthracitic coal and coke were studied in this paper.

采用无烟煤和焦炭对国产普通沥青进行了改性研究。

Chinese traditional virtue is humility and wariness,the compliment and praise to the others should be declination

中国人的传统美德是谦虚谨慎，对别人的恭维和夸奖应是推辞。如

We bought this house on the never-never.

我们以分期付款的方式买下这座房子。