English translation for "constant-level ballon"

(搜集大气层资料的)定高气球。

Similar Words：

"constant-intensity sources" English translation, "constant-k lens" English translation, "constant-k network" English translation, "constant-length heat treatment" English translation, "constant-level balance" English translation, "constant-level balloon" English translation, "constant-level control" English translation, "constant-level conversion" English translation, "constant-level flight" English translation, "constant-level head tank" English translation