--gm hk  eng
++000    00000ngm a2200000 a 4500
++090    |a530 PHY
++245 10 |aPHYSICS 2000:Experiments for Book l(Sample)|h[videorecording]
++260    |aHong Kong :|bMacmillan ;|c1998
++300    |a1 videorecording
++690    |aPhysics_物理