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【多选题】
5下列关于管壳式换热器的描述中,错误的是:A.
管壳式换热器结构简单、紧凑、能承受较高的压力。
B.
管壳式换热器适用于壳侧介质清洁且不易结垢并能进行清洗的场合。
C.
管壳式换热器适用于管、壳程两侧温差较大或者壳侧压力较高的场合。
D.
在管壳式换热器中，当管束与壳体的壁材料的线膨胀系数相差不大时，壳体和管束中将产生较大的热应力
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My name is Zhao Hua
B.
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A.
D/P is much safer for the seller than D/A
B.
D/P after sight and D/A both adopt the draft.
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D/P belongs to collection but D/A can be remittance.
D.
D/P can be sight payment while D/A is only time payment.
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