maintain reserves

基本解释

And it is closely tied to the need to maintain reserves and the desire to manage certain aspects of the domestic economy.
而这是与保存储备的需要，以及处理国内各种经济局面的需要有着密切关系的。
By hoarding commodities—such as garlic—of which the PRC Government does not maintain state reserves, investors can relatively easily manipulate the price and gain profit.
通过囤积商品，如大蒜，其中中华人民共和国政府并没有国家储备，投资者可以比较容易地操纵价格，获取利润。
www.haining.com.cn
Finally, itmust maintain legally required reserves, in the form of vault cash and/orbalances at its Federal Reserve Bank, equal to a prescribed percentage of itsdeposits.
最后还要以保险库现金和（或者）存款余额的形式在联邦储备银行保留法定的准备金额，数额要与规定的存款比例相等。

This means investors need to maintain reserves against potential claims and cannot distribute all of the proceeds.
FORBES: Tough Truth About Defensive Exits
Our goal was to continue to be able to respond to the open disasters and maintain enough reserves for any new disasters until we get into the next fiscal year.
WHITEHOUSE: Press Briefing
Third-party providers install and maintain huge reserves of public cloud service capacity: so you can call on extra resources at peak times and release them when they are no longer needed.
FORBES: Are Cloud Data Security Fears Overblown? A Sensible View.