For this, the screw compressor gas regulation put forward higher request.

就此而言，对螺杆空压机的气量调节提出了更高的要求。

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In some special occasions for metal hard seal butterfly valve seal put forward higher request, must be two-way under pressure.

在一些特殊场合对金属硬密封蝶阀的密封提出了更高的要求，必须双向承压。

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Therefore, the packaging and printing of printing eligibility and post-press processing eligibility put forward higher request.

因此，对包装印刷的印刷适性及印后加工适性提出了更高的要求。

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