词汇 | culling |
释义 | culling present participle ofcull cull verb[ T ] uk /kʌl/ us /kʌl/ When people cull animals, they kill them, especially the weaker members of a particular group of them, in order to reduce or limit their number: (为减少或限制数量而对动物)选择性宰杀,剔除(尤指病弱动物) The plan to cull large numbers of baby seals has angered environmental groups.选择性捕杀大量小海豹的计划引起了环保组织的强烈愤慨。 cullnoun[ C ]ukus the annual red deer cull Phrasal verbcull something from something Examples of cullingculling In English, many past and present participles of verbs can be used as adjectives. Some of these examples may show the adjective use. More specifically, the aim is to assess whether and how time-variable culling policies can be more efficient than the best constantculling policy. With culling during the first month in an area around the initial infection, profits increase up to 500-fold. These transitions are based on on-farm data sets and so included farmer management practices (culling rules and cross-fostering). The estimation of repeatability and heritability from records subject to culling. Since s (p, x) can have either a positive or a negative value, a modification must be made to the minimax culling algorithm. In a 1-stage culling system all breeding animals are discarded after a given number of breeding seasons. For subclinical or clinical infections that were last detected at dry-off or at culling, sample date was taken as the endpoint of infection. In many situations, and whenever possible, an early culling may in fact considerably increase annual effective size. Moreover, the hunting rate is usually assumed to be constant over time, while in reality health authorities can implement more flexible culling policies. The general tendency is contrary to the expectation that annual effective size would increase with increasing life span or with increasing culling stage. This ratio can be increased either by increasing the culling rate or by doing no culling at all. Culling for low milk production was occasionally practised but within-herd systematic selection was not performed. The reason is that banning trade will not stop the culling of elephants if the managing agency aims to maximize social welfare. In the case of a livestock reservoir, vaccination of livestock (when available) may now make more sense than culling. On the other hand, very high culling efforts can be too expensive to be achieved. 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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