The main cylinder of hydraulic press is ground by self-made belt grinding device. The method supplys grinding of deep blind hole a economic and reliable technology.

本文阐述了利用自制的砂带磨削装置，对液压机主缸内孔行进磨削加工。该方法为深盲孔的磨削加工提供了经济可靠的工艺方法。

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"I have made a mistake, " the clinically blind politician said in press conference later in the day.

FORBES: Blair Loses Ally After Company Directorship Fiasco

He had "turned a blind eye" to allegations about press hacking.

BBC: David Cameron: A second chance

As Mark mentioned in his speech at the press conference after the first public demo of the vehicle early this year, blind drivers have other sources of information beyond the DriveGrip and SpeedStrip controls.

CNN: Why we made a car for blind drivers