air valve
A valve used to admit or discharge air from a pipeline.
热门单词
- anhydrous calcium sulfate
- anhydrous calcium sulfate, dead-burnt gypsum
- anhydrous gypsum plaster
- anhydrous lime
- animal black
- animal glue
- animal glue, hide glue
- anisotropic
- ANL
- annealed glass
- annealed tube
- annex, annexe
- annealing
- annex
- annexation
- annexe
- annual plant
- annual ring
- annual ring, growth ring
- annular
- annular crypt
