The principle of one-way adjustable cylinder, which hero introduces it in detail?

One-way adjustment means that the extension stroke is adjustable or the contraction stroke is adjustable. If so

Adjustable extension: piston rods should be extended at both ends of the cylinder, and an adjustable nut should be added at the other end to limit the extension length.

Telescopic adjustment: A screw rod extends into the cylinder at the end of the cylinder to control the telescopic stroke against the piston.