整个系统具有良好的用户界面，有较强的数据兼容性和模块扩充性。
The whole system has a good user interface and strong compatibility as well as expansibility.
新的模块对电池的寿命提供了很大的改进(方法非常简单，将电池扩充为2倍大小)。
The new model did offer substantially improved battery life (through the simple expedient of making the battery twice as big).
客船总布置图图库模块主要完成图库的建立和扩充、图库的查询以及图块的输出；
The main functions of the second module is to establish and extend graph library, retrieve from graph library and output graph blocks.
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