GbEng
弯弯曲曲的；迂回的充满弯曲和拐弯的；曲折的 Full of twists and turns; tortuous.
迂回管道用于引导气体或液体绕过其它管道或装置的一种管道或渠道 A pipe or channel used to conduct gas or liquid around another pipe or a fixture.