A study of the rod type manual operated vacuum switch (RMVS) is introduced.

介绍了杆式手操作真空负荷开关的研究。

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The injection head can be manual operated or be fixed for easy operation and control.

喷头可手持或固定安装，操作简单、控制容易；

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If serious deformation is occurred, the manual operated cutter or gas cutter to be used for correction to ensure the re-bar end surface perpendicular to the axis.

如有严重变形时应用手提切割机切割或用气焊切割、矫正，以保证钢筋端面垂直于轴线。

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The laundries were Catholic-run workhouses that operated in Ireland and where girls and women had to do unpaid, manual labour.

BBC: Magdalene laundries: Women confident of state apology