| 摘要 |
FIELD: transport. ^ SUBSTANCE: invention relates to rafting, namely, to rafts. Raft section is made up of round timber of limited buoyancy fastened by studs and separated into two parts. One of raft section parts is located above water while another one is completely submerged. Raft section parts are separated by timber of higher buoyancy. Amount of higher-buoyancy timber is defined by appropriate mathematical expression specified in invention claim. ^ EFFECT: higher reserve buoyancy. ^ 4 dwg |
