restriction on access

1

In the case of insufficient system resources , if no restriction on access users , QoS of access users might be reduced .

在系统资源不足的情况下，如果不加限制的接入用户就可能导致已有连接的服务质量下降。
2

There is no restriction on market access concerning the mode of overseas consumption after China entered WTO . So far China has entered the latter part of its five-year transition period after the entry and the competition will be increasingly fierce .

我国入世后，对境外消费方式下的市场准入没有限制，虽然从签约起有五年的过渡期，但目前我们已进入入世后过渡期，因此竞争日益激烈。
3

Using the NOT operator , further restriction can be placed on access control .

可以使用NOT操作符对访问控制进行进一步限制。