词汇	gas bubbling
释义	gas bubbling 吹气
随便看	machine direction machine direction tensile strength machine directly machine disconnection-related difficulty machine discovery machine dispensing machine dispersing machine dispersion machine-displayable text machine-displayable texts machined jet-dust sprayer machined nut machined-nut machine doctor machine Doerfel machine downtime machine down time machine down-time machine downtime analysis machined part machined part surface machined pinion Machined process machined product machine draught