If you define a compound key, the order of columns in the primary key matches the order of columns as shown in the table in your diagram.
如果定义复合键，则主键中列的顺序与关系图的表中显示的列顺序匹配。
We keep only a compound primary key and a secondary index for each row, and answer all queries from a single index.
我们只保留了一个组合主键和一个辅助索引来完成所有的查询。
The process and key techniques of a compound juice of Chinses date and mulberry were introduced in this paper.
本文简要介绍了利用桑果和红枣加工成复合果汁饮料的生产工艺。
The key of designing the mold for rubber spring and compound rubber spring curing and some problems that need pay attention while assembling were introduced briefly.
简要介绍橡胶弹簧和复合橡胶弹簧硫化模具的设计要点及装配时应注意的问题。 附带说明橡胶弹簧退模时的专用工装。
This paper offers a compound chaotic system based mutiple model used as sequence cipher, which has a high encryption speed, a large key space and is difficult to crack.
本文提出一种基于多模型的混合混沌系统，它具有加密速度快，密匙空间大，不容易破解的优点。
Research conclusions: The notch form, height of compound notch and notch length were the key factors to cool tower collapse.
研究结论：切口形式、复合切口高度、切口长度，是确保冷却塔倒塌的最关键技术；
So uniform coating in dry compound process is key.
所以均匀涂布在干式复合工艺中十分关键。
The introduction of compound fresh-preserving agent can prolong the quality guarantee period of the products. But now the reasonable dosage in brine has long been where the key question lies.
引入复合保鲜剂可以延长产品的保质期，但卤煮过程中，其合理用量一直成为瓶颈问题。
Shanghai scientists said yesterday that they've found a key compound that might be developed as an oral drug for Type II diabetics and people who want to lose weight.
上海科学家昨天宣称他们发现一种关键化合物，该化合物可能能够用于合成II型糖尿病患者和减肥人群的口服药物。
As special function is required, the construction of polysulfide sealing compound turns into a key procedure in project of a sewage treatment plant.
由于特殊功能要求，聚硫密封膏的施工成为某污水处理厂工程的关键工序。
It is a stress marker for the key plereme translated into morpheme, and many Chinese compound words were made by it.
关键义素外现为语素，是对语义作着重标记，不少汉语复合词由此生成。
The stress analysis of compound female die is a very complicated problem. Its accurate analysis is the key to solve die longevity.
组合凹模的应力分析是一个非常复杂的问题，对其进行精确分析是解决模具寿命的关键。
Some key technologies, such as the compound CBR and RBR technology and a new calculating approach of pressing center are studied.
提出了一种新的压力中心计算方法，并对基于规则和实例的混合推理技术进行了较深入的研究。
It is proved that this public key cryptosystem based on compound encryption has not been influenced on time complexity and space complexity, but it has more security t.
实践表明，这种基于复合加密的公钥密码系统，算法的时间复杂度和空间复杂度并未受到影响，但其安全性较早期各同类系统更高、更易被用户采纳。
The major characteristic of my factory compound bay packing equipment is that the structure is compact, quality is steady and reliable, the key components fully adopt imported product.
本厂生产的复合袋包装系列设备，主要特点是结构紧凑，质量稳定可靠，其关键部件均采用进口产品。
The key of successful compound plugging is figuring out the mechanism of compound plugging.
高温泡沫与刚性颗粒复合堵调成功的关键在于弄清它的堵调机理。
Lycopene has been identified as the key compound found in rich, red tomatoes.
番茄红素已被确定为丰富，红色的西红柿中的主要化合物。
Commonly used compound sentence structures, key language points and rhetorical methods are highlighted so that students achieve proficiency level through the comprehensive study.
讲解常用复句句型、语法要点和修辞手法，提高融会贯通的水平。
Commonly used compound sentence structures, key language points and rhetorical methods are highlighted so that students achieve proficiency level through the comprehensive study.
讲解常用复句句型、语法要点和修辞手法，提高融会贯通的水平。
应用推荐