| 单词 | stoma |
| 释义 | stoma noun[C] biologyspecializeduk/ˈstəʊ.mə/us/ˈstoʊ.mə/pluralstomataone of the manypores(= verysmallholesin thesurface)on aleaforstemof aplantthrough whichgasesareabletopassin and out （植物叶子或茎表面的）气孔Parts of plants
Examplesofstomastoma The number of stomata was counted at each point, using a microscope with a lattice micrometer. From theCambridge English Corpus The distribution of the stomata could not be determined, but their polar axis lies along the length of the leaf. From theCambridge English Corpus In the adult worm, this papilla becomes dome-shaped with a small centralstoma. From theCambridge English Corpus The role of stomata in sensing and driving environmental change. From theCambridge English Corpus The stomata were observed to respond to changing ambient conditions within three minutes. From theCambridge English Corpus A distalstomaallows bowel function to recover. From theCambridge English Corpus However, water loss can also occur across the trichomes and the cuticle when stomata are closed. From theCambridge English Corpus This was also true for the upper epidermis of tannia and sweet potato where stomata were present. From theCambridge English Corpus The consequence is a prolonged requirement for parenteral nutritional support, and sometimes further surgery, usually involvingstomaformation. From theCambridge English Corpus They too observed partial closure of the stomata during the day, even in irrigated trees. From theCambridge English Corpus Fifty patients from an urban practice were included in the study and theirstomacare needs were assessed. From theCambridge English Corpus There also has to be psychological acceptance of thestomaby the patient. From theCambridge English Corpus This species had two types of stomata, large and small. From theCambridge English Corpus These two species did not have stomata on the upper epidermis. From theCambridge English Corpus In the majority of patients bowel control is achieved because they have astoma. From theCambridge English Corpus These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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