一般构件指其自身失效不会导致主要构件失效的构件。
由于一般构件的几何形状和荷载状态复杂，难于对裂纹尖端的应力应变状态得到理论解。
Because of complexity of geometric shape and loading state for general component, it is difficult to gain theoretical solution to the state of stress-strain for cracking tip.
组件一般提供了用于操作自己的构件类型的操作。
A component generally provides operations to manipulate its types of artifacts.
可得的更高技巧：使用一般的测试自动化构件以及标准的产品，意味着有技巧测试自动化开发员可以更容易地达到了。
High skills availability: Using common test automation components and standard products means an increased availability of skilled test automation developers.
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