查询词典 base...on

A base found in DNA and RNA and derived from pyrimidine; pairs with guanine.

DNA和RNA中的碱，由嘧啶衍生而来，与鸟嘌呤成对。

Guanine A nitrogenous base found in DNA and RNA. Guanine has a pruine ring structure.

鸟嘌呤：是存在于 DNA 与 RNA 中的一种含氮碱基，具有一个嘌呤环结构。

Almost all the mutation were G→A transiton and the guanosine is the major target base.

而突变大多以G为主要攻击目标，而且突变型态有很多比例的G→A突变。

Necessary it can also use an extension of the NPN base region as a guard ring.

注入，如果有必要通过延伸NPN的基区到隔离槽形成保护环。

Thesis describes data base design of guest-room management system, according to these measures.

论文详细叙述了客房管理系统分析设计和编码实现的过程。

An Ariane V rocket blasts off from Europe's space base in French Guiana, South America.

在南美，法属圭亚那欧洲太空基地，一枚阿丽亚娜V火箭离地升空。

An amine bactericide, JA-1, is developed to prevent plant gum base hydrofracturing fluids from deteriorating by microorganism s.

华北油田在配制植物胶水基压裂液时，曾使用40%甲醛水溶液(加量0.5%-1.0%)为杀菌防腐剂，未能控制压裂液的霉腐变质，霉变率高达10%以上。

Encapsulated Gel Breaker ; Delayed-Release Gel Breaker ; Water-Base Plant Gum Fracturing Fluids ; Research and Development ; High Proppand Load Fracturing Fluids

胶囊破胶剂；缓释破胶剂；水基植物胶压裂液；研究与开发；高砂比压裂

Relying on private pinewood base and the rich local resource of Chinese red pine rosin, we have been closely cooperating with universities and institutes, and introduced and absorbed advanced technology and equipment for production. We produce rosin modified resin and deeply processed alkene turpentine products with high quality and stable performance. We have formed production lines with annual output of 20,000t gum rosin and 3,000t gum turpentine, and deep processing capacity with annual output of 20,000t rosin modified resin and 5,000t turpentine.

公司依托自有松林基地及当地丰富的马尾松松脂资源，与科研院校密切合作，引进和吸收国内外先进技术和设备进行生产，并与多家科研机构保持密切的合作关系，生产各种品质优良、性能稳定的松香改性树脂和烯烃类松节油深加工产品，能够根据客户要求研发出各种特殊用途的林化产品。

Knowledge representation and data base building are key techniques for the on development of the knowledge-based gun barrel CAD system.

知识的表示与数据库的构造是开发基于知识的枪管CAD系统的关键。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。