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- Most of current multilevel secure systems adopted Bell LaPadula(BLP) Model. 现有的多级安全系统一般采用BellLaPadula(BLP)模型,但是BLP模型的"向下读,向上写"的访问规则严重影响了系统的可用性、灵活性,破坏了数据完整性。
- The church bell tolled the hour. 教堂的鸣钟报时。
- The bell tower is the emblem of this city. 这座钟楼是这个城市的象征。
- There is a sonorous bell in the tower. 塔里有一口洪亮的钟。
- John bears the bell in all track events at school. 约翰在学校里的各个径赛项目中都赢得第一名。
- Marvin Bell is greatly valued as a good poet. 马文·贝尔被尊为一位优秀的诗人。
- The bell gave forth a peasant, lingering sound. 钟奏起了悠扬悦耳的曲调。
- A pull on the rope will make the bell ring. 一拉绳子钟就响。
- Standing by him was a model worker. 站在他旁的是一位劳动模范。
- A bell rung as a call to recite this prayer. 天使经钟用来号召进行这种祈祷的钟声
- I think I can get that special model for you. 我想我可以为你找到那种特别的型号。
- No one may leave the classroom until the bell goes. 铃响以前任何人均不得离开教室。
- She has been held up as a model worker. 她被推举为模范工作者。
- He showed us a model of the new office building. 他给我们看了新办公楼的模型。
- I was roused by the sound of the bell this morning. 今天早晨，我被铃声唤醒。
- He taught Tom how to make a model airplane. 他教汤姆作模型飞机的方法。
- The bell, when struck, gave forth a hollow sound. 敲这钟时发出一种闷哑的声音。
- John is repairing his model plane at his leisure. 约翰不慌不忙地修理着他的航模。
- His name rings a bell; perhaps we've met somewhere. 他的名字听起来耳熟，也许我们在什麽地方见过面。
- The old sailor chipped out a tiny model boat. 那名老水手一点儿一点儿地削出一个小船模型。
