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| Terms for subject Environment (31552 entries) |
| oyster farming (There are two types of oyster farming: suspension culture, in which oysters are grown off bottom, in floating trays, is a labor-intensive form of cultivation that requires continuous tending and cleaning of both gear and shellfish, and bottom culture, which is similar to conventional crop farming on land; it involves selecting areas of the sea floor that provide a natural food supply, necessary currents, minimum exposure to predators, and proper temperature and then "seeding" the bottom with shellfish stock that are left to grow to market size. Then they are harvested with a bottom drag from a boat. Both suspension culture and bottom culture depend on natural food supplies for growing the shellfish being raised) | ostréiculture | |
| oyster flat | huîtrière | |
| oyster flat | banc d'huîtres | |
| oyster flat | gisement d'huîtres | |
| oyster flat | gisement huîtrier | |
| oysterage | huîtrière | |
| oysterage | banc d'huîtres | |
| oysterage | gisement d'huîtres | |
| oysterage | gisement huîtrier | |
| ozonagram | ozonagramme | |
| ozonagram | ozonogramme | |
| ozone (An allotropic form of oxygen containing three atoms in the molecule. It is a bluish gas, very active chemically, and a powerful oxidizing agent. Ozone is formed when oxygen or air is subjected to a silent electric discharge. It occurs in ordinary air in very small amounts only) | ozone | |
| ozone "hole" | trou d'ozone | |
| ozone "hole" | trou de la couche d'ozone | |
| ozone ageing | tenue à l'ozone | |
| ozone ageing | vieillissement à l'ozone | |
| ozone air purifier | ozonateur | |
| ozone behaviour model | modèle d'ozone | |
| ozone behaviour model | modèle de l'ozone | |
| ozone behaviour model | modèle du comportement de l'ozone |