成员的完整列表，这些成员属于 eve::fluids::VolumeFluidQueryHit,包括所有继承而来的类成员

distance	eve::fluids::VolumeFluidQueryHit
normal	eve::fluids::VolumeFluidQueryHit
particle	eve::fluids::VolumeFluidQueryHit
particleIndex	eve::fluids::VolumeFluidQueryHit
queryIndex	eve::fluids::VolumeFluidQueryHit
queryPoint	eve::fluids::VolumeFluidQueryHit