Science has dangers and difficulties, arduous effort can cross barriers

科学有险阻苦战能过关
Kexue you xianzu kuzhan neng guoguan
Science has dangers and difficulties, arduous effort can cross barriers
1979, February
Shaanxi renmin meishu chubanshe (陕西人民美术出版社)
53x76.5 cm.
BG E50/23

Two female researchers and a male PLA-soldier with a two-way radio, suggesting a military application of the research.