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orifice of pipe
meaning in English
管口
Related Words
orifice
cock orifice
semicircle orifice
oxygen orifice
sinoatrial orifice
three orifices
oesophageal orifice
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gland orifice
auriculoventricular orifice
orifice of nasolacrimal duct
orifice of parotid duct
orifice of prostatic duct
orifice of pulmonary trunk
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