Back filling at abutment back of Bridge or culvert
back reaming and back transportation
Back-to-Back
对头拼接
背靠背
背对背的
背靠背结构
背对背
紧接的
背向式计数器
Ability of bringing into wastewater
achievements of bringing forth new ideas
Bringing force new ideas
Bringing Forth New Ideas for Design
Factors bringing out infusion reactions
scheme bringing forward
(pressure)gauge with back connection