单词 | cap |
释义 | cap [kap] ENGINEERING A detonating or blasting cap. GENETICS In many eukaryotic messenger ribonucleic acids, the structure at the 5' end consisting of 7'-methyl-guanosine-pppX, where X is the first nucleotide encoded in the deoxyribonucleic acid; it is added posttranscriptionally. MATHEMATICS The symbol ∩, which indicates the intersection of two sets. MINING ENGINEERING 1. A piece of timber placed on top of a prop or post in a mine. 2. The horizontal section of a set of timber that is used as a support in a mine roadway. |
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