Relationship between mineral floatability and ph value .

值与矿物可浮性的关系。

The results show that dual three-wheel bogie main landing gears can significantly improve the surface floatability of aircraft , reduce runway wear and thus improve take-off and landing safety .

结果表明双三轮车式主起落架能够大大提高飞机的地面漂浮性，减小道面磨损，从而提高了飞机起飞和着陆的安全性。