But now, Fed officials view this authority as a key element in the central bank's tool kit for managing the economy.
但是现在美联储官员将这项权利视为为管理经济推出的央行工具包中的主要工具。
2
Because of the importance search engines place on quality links, linking strategy has become a key tool in the webmaster's kit for keeping a website out front in search engine rankings.
正是因为这些高质量的连接对搜索引擎的重要性，所以高质量的链接规划对于搜索引擎的排名是非常关键的。
3
The key components of the system consist of a tail section with aerodynamic control surfaces, a (body) strake kit, and a combined inertial guidance system and GPS guidance control unit.