变截面流道
flow passage of variable sections
扩大截面法
method of extension cross section
enlarged section methord
扩大截面加固
concrete structure expansion section reinforcement
变截面流化床
variable section fluidized bed
地面截流污水渠
land-based interceptor sewer
分汊河道截流
closure of crotched river
高功率横流CO2激光器流道
way of the flowing gas in HP TF CO2 laser