Aiming at the bearing capacity of TBM hydraulic propulsion mechanism under the conditions of large sudden load and extreme heavy load. the stiffness performance performance and sensitivity of TBM hydraulic propulsion mechanism are studied. The method regards the cylinder block. piston and hydraulic oil of each hydraulic propulsion cylinder branch chain connected in parallel as a multi... https://www.bekindtopets.com/hot-mega-Jeffers-Economy-600D-Royal-Blue-Teal-Plaid-Horse-Blanket-super-sale/