北极研究试验室
Arctic research laboratory ice section
气密性试验
gas-tight test
tightness test
gas-tightness test
airtight inspecting
air pressure test for tightness
air tightness test
leak tightness test
gas leak test
leakage test
air tight test
air-tight test
气门开启压力试验
valve opening pressure test
气候环境试验
climate environmental tests
气候风洞试验
climatic tunnel testing
climatic wind tunnel test
气动特性试验
aerodynamic characteristics tests