ventilation facilities

air research and development command (ardc) autogiro autogiro compass direction desingularizing garman Hadjadj harmonized jean monnets Kinel'skiy Rayon liquor acidi borici Nishio nucleus posterior corporis trapezoide Plagiaulacida Pucciniastrum galii quasi-compact read clock S.I.N. single-V groove with root face spacewalker vanward