一个复合语句包括一个流控制指令，后跟一个冒号(：)，然后再是一个程序语句块。

A compound statement consists of a flow control instruction, followed by a colon character (:), followed by a block of program statements.

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复合控制采用对制导指令进行前向分解的方法，将复合控制系统分为两个并行的子系统，即气动力控制子系统和直接力控制子系统。

By means of guidance command decomposed forwardly, the combined control system is divided into two parallel subsystems: the aerodynamics subsystem and the direct force subsystem.

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