This arrangement makes it possible to bubble the exhaust gas down through the outer compartment and then bubble it back up through the opaque middle.
这种安排使得它可以导引废气穿过外隔层，然后再导引其经由中间的不透明管道返回。
2
STUDY SELECTION: After arrangement, the literatures aimed directly at the clinical diagnosis of chronic LBP induced by chronic lumbosacral fascia compartment syndrome were selected.