Relational databases use Structured Query Language (SQL) to pull information from multiple tables and columns, but key-value stores are limited to operations on the key column.

关系数据库使用结构化查询语言(Structured Query Language, SQL)以便从多个表和列中提取信息，但是键值存储仅限于对键列的操作。

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The paper studies the integration between digital service provider and network service provider on the value chain in the environment of 3G, analyzes separately the push SC and the pull SC.

在3G环境下，针对价值链上的数字服务商与网络服务提供商之间的整合进行研究，分别对推式供应链和拉式供应链进行了分析。

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Based on your property's value and equity, you can pull out cash for home improvements or to consolidate bills.

基于您的财产的价值和资产，你可以退出现金，为家中的改进或巩固法案。

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And the reason seems to be that gluten has such a damaging effect on the stomach villi (the fine strands that pull nutrients from your food) that you get less and less value from what you eat.

FORBES: If You Want To Lose Weight, Check What You Can Eat