它们设计得不好。
Much, if not most, of the XML we have seen is not well designed.
我们看到的许多XML（如果不是大多数的话）其设计都不是很好。
Stateful session beans, on the other hand, are not well designed for such applications.
相反，有状态会话bean并不是为这类应用程序而精心设计的。
If the gas bearing used in the stage is not well designed, micro-vibration will take place, which makes the stage system lose its accuracy.
这种系统所采用的气浮轴承如果设计不当，会导致系统发生微幅振动，从而影响系统精度。
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