observation angle (of a retroreflector)

aacc Attic calendar basic ket battening on blotne brick course caustic slag Dipimol flinty crust genus Orectolobus intrinsic parity mcgimpsey mixed container mixer shaft propellant management systempropellant control sy Prunus dasycarpa Scolochloa festucacea steering knuckle tie rod ball sulfur bichloride zimmy