Regulating the position of the internal steel tube can make the axel of the stay cable and the axis of the embedded tube overlapped.
调节内钢管的位置，能使斜拉索轴线与预埋管轴线重合。
2
Disclosed is a pressure dredging device without a rod, mainly comprising a draft tube, a connecting tube, a handle, a compressing ring and a regulating pawl.
一种无杆压力疏通器，主要包括有引管、连管、手柄、压缩圈以及调节爪。
3
By regulating the cathode temperature and applying the combined exhaust techniques, the mean time of no-failure operation of this picture tube is lengthened more than four times.