单词	picnic supper
释义	picnic supper 盒饭
随便看	pressure difference transmitter pressure difference type relay pressure-difference valve pressure differential pressure differential bypath valve pressure-differential communicating valve Pressure differential control pressure differential curve method pressure differential flying pressure differential meter pressure differential metre pressure differential navigation pressure differential range pressure differential recorder pressure differential scanning calorimetry pressure differential warning valve pressure differintiator pressure-diffusing-type anchorage cable pressure diffusion pressure digestion pressure dilatation pressure dimension pressure disc pressure disc filter pressure discontinuity