Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration.
裂缝不仅可以使孤立的孔洞得以连通，发育成有效的储集空间，大大提高基质渗透率，更是油气的主要运移通道。
Thoracic cavity (or chest cavity) : Second largest hollow space of the body, enclosed by the ribs, vertebral column, and breastbone and separated from the abdominal cavity by the diaphragm.
胸腔：人体第二大的空腔，被肋骨、脊柱和胸骨包围，并以膈和腹腔隔开。
The paths of the corrosive gas can be a hollow cavity formed in the foreign substrate base bar, the hollow cavity and the nitride reacting chamber are separated by the foreign substrates.
所述腐蚀性气体通路可为异质衬底基座杆内形成的中空内腔，该中空内腔和氮化物生长反应腔通过异质衬底隔开。
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