Each message, or frame, starts with a command and ends with the ASCII sign for a null character.

每个消息(即帧)以一个命令开头，以一个表示null字符的ASCII符号结束。

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Secondly, we introduce a prepositional class-selection semantics, give the frame conditions of the character axioms of the systems.

其次，我们建立命题型的择类语义，给出描述上述系统的特征公理的框架条件。

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The implement strategy and frame model of rapid design system, the definition and character and contents of modular design are introduced.

介绍了快速设计系统的实施策略和框架模型，模块化设计的定义、特征和内容；

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On his screen is a single frame of the character Alex the Lion with a mathematical grid over his face and a big, bulging eyeball.

NPR: Making an Animated Escape to 'Madagascar'

As recently as the 1950s a character called Frank the Frame Burner drove his horse and cart around London collecting cast-off 19th-century gilt frames to melt down.

FORBES: Features

Today, though, Venrock racks up startlingly high gains in an unimaginably compressed time frame--by acting entirely out of character.

FORBES: Personality Change