the spiracle of a cetacean located far back on the skull
a hole for the escape of gas or air
同义词：ventventholevent-hole
blowholes例句
Blowholes Blowholes Blowholes Spouting horn Blowholes BLOWHOLES Spouting hornBlowholes The Harmfulness of Blowholes in PTH Soldered Assemblies The development of blowholes in the ice/water/carbon dioxide system Blowholes of the Binding Surface between Casting Bronze and Steel Workpiece and Prevention Reduction of blowholes in high-speed arc welding of hot-dip galvanised steel sheets Reduction of blowholes by vibration of the molten pool in arc welding of galvanised carbon steel sheet Reduction of Blowholes by the Vibration to Molten Pools in Arc Welding of Galvanized Carbon Steel Sheets Shallow caves and blowholes on the Nullarbor Plain, Australia — Flank margin caves on a low gradient limestone platform EFFECT OF RARE EARTH ELEMENTS ON THE FORMATION OF GAS BLOWHOLES IN CAST ALUMINUM ALLOY
