The hydraulic jack generally by this aircraft (main engine), the dynamic system and the hydraulic control system three parts is composed.

液压千斤顶一般由本机(主机)、动力系统及液压控制系统三部分组成。

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This system consists of three main parts, data collection, frequent measurement and data showing.

数据采集、频率测量和数据显示是本系统的三个重要组成部分。

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This dissertation consists of three parts: Prologue, Main body and Epilogue.

本文分为三个部分：引言、正文和结论。

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