例句與造句

1. A typical good value for spherical grains is 0.64, as given by random close packing.
2. Permeability needs to be measured, either directly ( using Darcy's law ), or through random close packing of identical spheres ).
3. An upper bound for close-packed spherical grains is 0.74048 . ( See sphere packing for more details ); this degree of packing is extremely improbable in natural systems, making random close packing the more realistic upper bound on grain packing density.
4. The pressure diverges at random close packing \ eta _ \ mathrm { rcp } \ approx 0.644 for the metastable liquid branch and at close packing \ eta _ \ mathrm { cp } = \ sqrt { 2 } \ pi / 6 \ approx 0.74048 for the stable solid branch.
5. It's difficult to find random close packing in a sentence. 用random close packing造句挺難的