The landscape pattern can be analyzed on three layers, corresponding landscape index is divided into three levels, namely the patch-level index, the class-level index and landscape-level index.
景观格局特征可以在三个层次上分析，相应地景观格局指数亦可分为三个水平，即缀块水平指数、缀块类型水平指数和景观水平指数。
The same version and patch level of a product can be used on servers throughout the world, thereby reducing the cost of support, maintenance, and training.
同一版本和补丁级别的产品能在世界范围的服务器上使用，因而降低了支持、维护和培训的费用。
Depending on your WebSphere Application Server version and patch level, automatic key generation might be on or off by default; the more recent the version, the more likely it is off by default.
根据WebSphere Application Server和补丁级别不同，自动密钥生成在默认情况下可能启用了，也可能关闭了；版本越新，默认情况下它关闭的可能性越大。
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