| 词汇 | hopper |
| 释义 | hopper noun[ C ] uk /ˈhɒp.ər/ us /ˈhɑː.pɚ/ a large tube, wide at one end, through which large amounts of small separate things, for example seeds, can be moved from one container to another漏斗 zhanglianxun/iStock/Getty Images Plus/GettyImages Straining & filtering devices air filter butter paper charcoal filter coffee filter filter filter bed filter paper funnel greaseproof paper HEPA filter parchment paper salad spinner sieve sifter skimmer strainer tea strainer water filter wringer hopper | Business Englishhopper noun[ C ] PRODUCTIONuk /ˈhɒpər/us a large tube, wide at one end, through which large amounts of grain, animal food, coal, etc. are moved from one container to another Examples of hopperhopper Single-legged hopping robotics research similar results, when the spring-mass type vertical hopper was controlled with a controller, called periodic forcing controller. This strategy regulated the hopper at different hopping heights and was efficient even when hopping over obstacles. There is no doubt that the survivors of the 1932 hopper campaign were reverting to the solitary phase in the area. The first generation studied were partly composed of stragglers from hopper bands and flying swarms. They ate large numbers of hoppers and scattered the bands, so that no swarms of adults were produced. In the northern parts where predators were not so abundant, the bands were nevertheless small, and numbers of green hoppers could be found. The mass of pellets required to refill hoppers and the mass of spilt pellets were recorded to calculate food consumption per bird per week. This may explain the occurrence of apparently unparasitised hoppers of the pallid type. He predicted28 that the hopper was unstable if the thrust occurred at maximum compression. This hopper included a translational offset mass in order to cause the tipping action that helped in forward propulsion. They are unanimous in saying that hoppers were far more numerous in 1930 and 1931 than they had ever been before. All the hoppers were comatose and none was seen in the act of feeding. The observations indicate that hopper colouring is, at least in some degree, associated with the colouring of the environment. In many cases it was observed that pallid hoppers were sluggish and easier to catch than the normal hoppers. The figures for many of the species include hoppers. 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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