left main bundle branch block 左束支主干传导阻滞
main bundle branch 束支主干
main left bundle branch 左束支主干
main right bundle branch 右束支主干
main wire bundle 主电线束
The name of the file, including its filename extension. If this is the first time the image is being loaded, the method looks for an image with the specified name in the application's main bundle.
文件的名称，包含了他的文件拓展名。如果这个图片是第一次被载入，那么这个方法将会在应用程序主束中寻找指定的名称。
Sina has begun selling packages that bundle Weibo with its main portal business, but the company is waiting before it tries to monetize Weibo more directly.
新浪开始将微博同其主营门户业务打包出售，不过在找到更直接的微博生财之道前，这家公司并不着急。
These things tend to make money, but the main goal is to hook readers on a bundle of services.
这些事情可以盈利，但主要目标是用捆绑销售来留住读者。
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