The packing density is more preferably 0.6 1.3 kg/l. Herein, {TAIL ~ bulk volume} refers to {HEAD ~ an apparent volume} including any vacant space 
The packing density is more preferably 0.6 1.3 kg / l. Herein , { TAIL ~ bulk volume } refers to { HEAD ~ an apparent volume } including any vacant space
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH