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P3 =0.1MPa ; P4=0MPa (均为表压) G max =60t/h ; G min =10t/h ; ρ =1000kg/m 3 ; 横段长 300m ,垂直段长 5m , λ =0.03 ,口径 d=20cm ; 弯头4 0 个, ξ 1=0.3 ; 选择单座阀,请完成: 1 )确定阀的口径和型号;(假设非阻塞流) 2 )若希望介质不用从液罐上部溢出,请选择执行器的气开气关类型和控制器正反作用; 3 )若希望得到直线流量特性,请选择调节阀的流量特性; (提示:注意各参数的单位)
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举一反三
【单选题】He asked his teacher _______.
A.
if there was a monster in Loch Ness
B.
when was Albert Einstein born
C.
how would the scientists find out the result
D.
where could he find the library
【简答题】一. 用所给单词的适当形式填空。 1.Don’t give up. Our life is full of the ______________(expect). 2. He doesn’t ________(believe) Tom’s words. So he asked his teacher in ___________(belief). 3. Look at the _...
【简答题】一部著作的完成需要很长的时间,请问下列哪部著作的成书时间最长? ( )
【简答题】He asked his teacher how he could play the violin well. (改为简单句) He asked his teacher _____ _____ _____ _____ _____ _____.
【单选题】Tom seldom asked his teacher questions, ?
A.
didn't he
B.
did he
C.
did Tom
D.
wasn'tTom
【单选题】In order to get_______ higher score, he asked his teacher to give him_______ second chance.
A.
a; a
B.
the; the
C.
the; a
D.
a; the
【简答题】大家好!“时尚翻译实践导论”结束之后我们就要正式进入时尚翻译的实践领域,接下来等着我们的是“时尚广告翻译”。这个领域非常丰富,既包含说明性语料也包含描述性的语料,而且中西方还存在很大的文化差异。为了给大家比较充裕的思考和翻译时间,我先发布说明性时尚广告的第一篇翻译材料,各位翻译好的版本需要在这个平台提交,预计3/16上课时间跟大家开始讨论, 江南布衣翻译材料.docx 谢谢大家!
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