stud hole plug 螺孔塞
threaded closure stud hole 封头螺柱孔
stud hole and stud accessories 螺栓孔与螺栓连接件
stud bolt hole 螺柱孔
through hole for closure stud 封头螺柱直通孔
The RPV stud hole lubricating machine is mainly composed of control panel, cable hanging device, automatic trolley and lubricating device.
上油机由上油装置、自动行走小车、电缆吊挂装置、显示控制台等组成。
The lubricating device is the key part of RPV stud hole lubricating machine, therefore, the structure and principle of lubricating device are described.
上油装置是上油机的核心部件，因此重点介绍了上油装置的构造与原理；
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