| 单词 | valve |
| 释义 | valve [valv] ANATOMY A flat of tissue, as in the veins or between the chambers in the heart, which permits movement of fluid in one direction only. BOTANY 1. A segment of a dehiscing capsule or legume. 2. The lidlike portion of certain anthers. ELECTRONICS See <<electron tube>> INVERTEBRATE ZOOLOGY 1. One of the distinct, articulated pieces composing the shell of certain animals, such as barnacles and brachiopods. 2. One of two shells encasing the body of a bivalve mollusk or a diatom. MECHANICAL ENGINEERING A device used to regulate the flow of fluids in piping systems and machinery. |
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