任何单位和个人不得修改、涂抹、标注、损毁公司登记档案资料。
No unit and individual shall revise, daub, mark or break down the documents of company registration files.
一次只尝试放松每个边界约束一个单位，解决修改后的问题，看一下目标函数的优化值发生了什么变化。
Try relaxing the value of each bounded constraint one at a time, solve the modified problem, and see what happens to the optimal value of the objective function.
数据库中的行是原子单位，可以被当作一个整体进行加锁，读取和修改。
Every row is an atomic unit, to be locked, read, and updated as a whole.
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