| 词汇 | sycamore |
| 释义 | sycamore noun[ C ] uk /ˈsɪk.ə.mɔːr/ us /ˈsɪk.ə.mɔːr/ a tree with leaves divided into five parts and seeds that turn around slowly to the ground when they fall西克莫槭树，悬铃木 Sieboldianus/ E+/GettyImages Deciduous trees acacia acer ailanthus alder almond fringe tree ginkgo hawthorn honey locust hornbeam pussy willow quaking aspen red maple red oak rowan wayfaring tree weeping willow white ash white birch white oak sycamore | American Dictionarysycamore noun[ C ] us/ˈsɪk·əˌmɔr, -ˌmoʊr/(alsoplane tree) a tree with divided leaves, spreading branches, and round fruit Examples of sycamoresycamore This result may indicate a similar mechanism in the two species but increased oxidative stress in sycamore. Arguably this suggests a similar mechanism in both species, but increased oxidative stress in sycamore. In sycamore the seed respiration rate initially remained constant, but then decreased just before shedding at 59% moisture content. However, desiccation through the same moisture content range in sycamore after shedding significantly increased the intensity of bands for cotyledon proteins. A similar but less distinct pattern was shown in sycamore (data not shown). While this different response may reflect greater oxidative stress in sycamore, it does not support the above hypothesis. At shedding, sycamore radicles had a ratio of 0.5:1; this declined during drying to 0.2:1 at 20% moisture content when viability was lost. Sycamore seeds retained viability during drying to approx. 30% moisture content, and then viability declined to zero with further drying to 10%. Perhaps it is significant that, unlike most other recalcitrant seeds, sycamore seeds reached maximum dry weight some time before shedding, similar to that in orthodox seeds. Sycamore seeds are dormant and at the desiccation tolerant end of recalcitrant behaviour, and this may account for their different response compared with seeds of other recalcitant species studied. In the present work, there was a limited increase in lipid peroxidation prior to viability loss in sycamore, but values were no greater than those experienced during development. I have a sycamore that can be seen by all and sundry. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I have had to do with hardwood for furniture—walnut, sycamore, chestnut and oak. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have more success with sycamore than with alder and birch. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 He strips all the sycamore trees and other trees from the top when they are about 8 or 10 years old. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 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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