A hydraulic cylinder is connected with an oil pressing rod.
一油压缸，其设有一油压杆，用以控制推进或退回；
The invented stopper is composed of slide oil cylinder, piston rod units and outer housing.
一种铁路全液压制动顶，由滑动油缸，活塞杆组件，及外壳组成。
The double oil cylinder, precise four-column automatic balancing connection rod mechanism can guarantee all cutting positions have the same depth.
双油缸、精密四柱自动平衡连杆结构，保证每一个裁断位置深度完全相同。
Double oil cylinder and precise four-column automatic balance connecting rod structure, which can guarantee the absolutely same cutting depth of each cutting position.
双油缸、精密四柱自动平衡连杆结构，保证每一个裁断位置裁断深度完全相同。
The cause for oil entering inside the cylinder may be due to the rod end damage from which the oil may enter inside the electronics or thrught the cable end side(if damaged or abused).
油进入气缸内的原因可能是由于杆端损坏，油可能从该端损坏进入电子器件内部或者电缆端侧（如果损坏或被滥用）。
After the piston rod retracts for a definite distance, the oil return amount of an oil cylinder can automatically reduce to realize speed reduction effect to the oil cylinder.
当活塞杆回缩至一定距离后，油缸的回油量便自动减少，从而实现对油缸的减速作用。
The power DT1, DT2 power, C port A, D port and exhaust ventilation, compressed air to push the piston rod oil cylinder forward, realize the preloading force state in figure 2;
DT1通电，DT2断电，C气口通气A、D气口排气、压缩空气将油压到油缸内推动活塞杆前移，实现预压出力状态如下图2；
The power DT1, DT2 power, C port A, D port and exhaust ventilation, compressed air to push the piston rod oil cylinder forward, realize the preloading force state in figure 2;
DT1通电，DT2断电，C气口通气A、D气口排气、压缩空气将油压到油缸内推动活塞杆前移，实现预压出力状态如下图2；
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