专业释义英英释义
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下行床 - 引用次数：5
Particle trajectory model is used to calculate the solids flow in three sections of the downer. Results indicate that, at the inlet of the downer, the solid concentration is high in the center area.
计算得到了下行段三个不同截面的气固流动分布状况,分布状况表明在下行床入口段固体颗粒集中在中心处附近,随着向下流动,固体颗粒扩散,中心处颗粒浓度降低,截面平均颗粒体积份额也降低。
参考来源 - CFD和电容层析成像技术及其在下行床的应用 -
(运输中的)卧地病畜
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断纸停机
·2,447,543篇论文数据，部分数据来源于NoteExpress
柯林斯英汉双解大词典
downer /ˈdaʊnə/
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1.
N-COUNT If you describe a situation as a downer, you think that it is very depressing. 令人沮丧的情况 [非正式] [usu sing, 'a' N]
例：For divorced people, Christmas can be a downer.
对离异的人来说，圣诞节是个令人沮丧的节日。
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2.
If you are on a downer, you are feeling depressed and without hope. 感到沮丧的 [非正式]
例：When I arrived, the team was bottom of the league and the whole place was on a real downer.
当我到达时，这个队伍在联赛中垫底，整个气氛令人感到沮丧。
双语例句原声例句权威例句
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Not getting the promotion was a real downer.
未得到提升真让人很沮丧。
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When I arrived, the team was bottom of the league and the whole place was on a real downer.
当我到达时，这个队伍在联赛中垫底，整个气氛令人感到沮丧。
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Rejection is a booster not a downer.
拒绝是助推器，不是沮丧。
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