5. Each of plates which with an elastomer seal fitted around its periphery, is contained within a frame with clamping plates at each end. What equipment is above description?
(A) Plate type heat exchanger
(B) Fin type heat exchanger
(C) Shell-and tube type heat exchanger
(D) Venting heat exchanger
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5. 每個板（其周圍安裝有彈性體密封件）...
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