基础组分，标准物质，关键组分
1. 主要组成部分：key area 关键区 | key component 主要组成部分 | key concept 主要概念
2. 主要成分：keep. . . on board 使. . . 有(工作上的)联系 | key component 主要成分 | keyboard instrument 键盘乐器
3. 限界组分：ketoxime 酮肟 | key component 限界组分 | kieselguhr 硅藻土
4. 关键部分,关键组分,主要组分：key compare technique ==> 关键字比较法 | key component ==> 关键部分,关键组分,主要组分 | key compression ==> 关键码压缩,关键字压缩
1. The key component is a group of antioxidants called flavonoids - a major component of tea - which help prevent cell damage.
2. Cisco has prioritized the expansion of the Cisco Networking Academy in Sichuan as a key component in its commitment to help cultivate local talent.
3. And 87 percent of the former will also give up everyday convenience as a key component of their future desire to " enjoy the great outdoors ".
4. He said a key component of the operation was the occupation of towns by Iraqi forces once combat operations are finished.
5. As a key component of BMW's corporate responsibility, the cultural program has sponsored caravans through 12 provinces since 2007.
6. Addressing the problem of TB is also a key component of President Barack Obama's Global Health Initiative.
7. Consumer finance serves as a key component of the government's plan to stimulate overall domestic consumption.
8. Arm & Hammer's Enamel Care Sensitive is said to contain a liquid form of calcium, the key component in tooth enamel.
9. The client should approve of each component to ensure the alignment of key stakeholders.
10. The foundation stone of the Olympic Village is laid today, a key component of the Olympic Green for the 2008 games.