In order to assure access for all, tuition charges were banned-only "fees" for some costs other than education were allowed.

为了保证所有人能入学，国家禁止收取学费——只能收一些除教育外的成本费用。

To work coordinately in a distributed network system, a synchronization algorithm must be introduced to assure mutual exclusive access and operation on the critical resource.

在分布式网络系统中，为了实现系统协调一致的工作，必须要有相应的同步互斥算法来保证临界资源的互斥访问和操作。

Building strategic underground water-sealed oil depots is one important access to assure the safe and stable national oil storage system.

建设战略地下水封石油储备库是完善国家石油储备体系的重要途径之一。