单词	hollow neck
释义	hollow neck 瓶颈过薄
随便看	threshold of urbanization threshold of ventricular fibrillation current threshold of visual sensation threshold operation threshold operations threshold operator threshold oscillation threshold oxidation temperature Threshold,Pain threshold panel model threshold parameter threshold parameter value threshold parasystolic impulses threshold partition Threshold perception threshold percussion threshold performance threshold period threshold phenomenon threshold pickup threshold pick up threshold pick-up threshold plate threshold point threshold population