单词 | christmas tree |
释义 | Christmas treeWord forms: plural Christmas trees countable noun A Christmas tree is a fir tree, or an artificial tree that looks like a fir tree, which people put in their houses at Christmas and decorate with coloured lights and ornaments. Christmas tree in British Englishnoun 1. an evergreen tree or an imitation of one, decorated as part of Christmas celebrations 2. Also called: Christmas bush Australian any of various trees or shrubs flowering at Christmas and used for decoration 3. another name for pohutukawa Christmas tree in American English US an evergreen or artificial tree hung with ornaments and lights at Christmastime Christmas tree in the Oil and Gas Industry (krɪsməs tri) Word forms: (regular plural) Christmas trees noun (Extractive engineering: Field development, Drilling) A Christmas tree is a set of seals and valves to control production, fitted to the wellhead when the well has been completed. The Christmas tree contains valves which control the flow of oil and gas after the well has been drilledand completed. Christmas trees vary in construction, but all have at least one valve to control the flow of thewell. A Christmas tree is a set of seals and valves to control production, fitted to the wellhead when thewell has been completed. Image of |
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