闭操作可使轮廓线更光滑，但与开操作相反的是，闭操作通常消弥狭窄的间断和长细的鸿沟，消除小的空洞，并填补轮廓线中的断裂。
基于数学形态学的图像去除噪声是通过对图像的开、闭操作有选择的去噪。
Goes based on the connected domain image chirp is through carries on to the image corrosion and the inflation has the choice to go chirp.
在进行一些灵敏的操作，例如对象导航，特别是使用闭包的时候，Groovy 偶尔会遇到歧义性问题和语法受限的问题。
When it came to clever operations such as object navigation, and particularly closures, Groovy suffered from occasional ambiguities and an arguably limiting syntax.
不可以用操作符、逗号或闭括号作为表达式的开始符。
Expressions must not begin with an operator, comma, or closing parenthesis.
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