摘要:Background :Why HLC?. Observation : HSVMT 27、GEMINI. Discussion & Outlook.Infrared cirrus Low et al. 1984. CO molecular clouds : Blitz etal.1984 ,Heithausen et al. 1990/1993, Penprase1992, Stark 1995, Magnani et al. 1996. CO molecular clouds :Ingalls et al.2000,Chi etal.2006, Montgomery et al. 2006,Liu et al. 2016.SIMPLIST MOLECULAR OBJECTS. DISTANCE :500 pc. NEED CO OBSERVATION with HIGHSPACE RESOLUTION : 50" vs 8'.