Owing to space constraints, this paper introduced only NIRVANA injection screw air compressor characteristic.

由于篇幅的限制，本文仅介绍NIRVANA喷油螺杆空压机的特点。

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At first, this paper introduced the overview of the project, and then analyzed its characteristics, importance and difference, and pointed out it 's the most crucial part to control the progress.

本文首先介绍了本项目的概况，在此基础上分析了项目工程的特点和施工重难点，指出项目进度控制是实施该项目的最关键部分。

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This paper introduced utilization values, cultivation methods, harvest and process, and resource protection of Cibotium barometz.

本文介绍了金毛狗厥的使用价值、栽培方法、采收加工以及资源保护。

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