Cost of application maintenance and modification.
应用程序维护及修改的成本。
Testing alone can consume half the budget for an application maintenance cycle.
仅仅测试就可能花费掉应用程序维护周期预算的一半。
Usually, all this code is intertwined with application logic, making it cumbersome for application maintenance.
通常，所有这些代码都与应用程序逻辑交织在一起，从而使得应用程序维护有些困难。
Any code you write is likely to spend most of its lifetime in maintenance; application maintenance is a large expense.
编写出来的代码可能需要大量的维护；应用程序的维护是一笔很大的开支。
For example, you can consider security issues more thoroughly, and you can perform application maintenance more easily.
比方说，可以更全面地考虑安全问题，可以更容易地维护应用程序。
Direct database access using JDBC from client to server is discouraged as this creates a tight coupling that greatly complicates application maintenance.
不赞成使用JDBC从客户机对服务器进行直接数据库访问，因为这样将创建紧耦合，使应用程序的维护变得非常复杂。
In addition, the cost of application maintenance is reduced by minimizing the scope of the impact of any changes to the application — assuming that scope can be determined.
另外，通过将应用程序的更改影响范围降到最小—假设影响范围能够确定，应用程序的维护成本也得以降低。
Main body of machine head adopts cast-iron structure and will never be deformed, which can ensure it not to affect the precision during the process of application, maintenance and change of units.
机头主体采用铸铁构造，永不变形，确保在使用过程及维修更换零件时不会影响其精度。
Main body of machine head adopts cast-iron structure and will never be deformed, which can ensure it not to affect the precision during the process of application, maintenance and change of units.
机头主体采用铸铁构造，永不变形，确保在使用过程及维修更换零件时不会影响其精度。
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