单词	凹沟
释义	凹沟 āo gōu chase
随便看	pressure gauge; pressure meter pressure gauge tester pressure gauge with back connection pressure gauge with bottom connection pressure gauge with electric contact pressure gauge with transmission device pressure generator pressure governor pressure gradient pressure gradient correction factor pressure gradient electron gun pressure (gradient) force pressure gradient force pressure-gradient force pressure-gradient hydrophone pressure gradient microphone pressure-gradient microphone pressure gradient rupture pressure-gradient work pressure grease gun pressure, ground water pressure group pressure groups pressure grouting pressure-grouting