shì yàn
experiment
test
CL:次[ci4],個|个[ge4]
to experiment
experimental
quán miàn jìn zhǐ hé shì yàn tiáo yuē
Comprehensive Test Ban Treaty
liú tǐ hé shì yàn
hydronuclear explosion (HNE)
Quán miàn Jìn zhǐ Hé shì yàn Tiáo yuē
Comprehensive Nuclear-Test-Ban Treaty