阿摩線上測驗
3. The layout of drain systems can often be improved by the use of automatic pumps.
Condensate can be drained by gravity more readily to local receivers and then pumped
back to the engine room as required. What type of operated traps is above description?
(A) Mechanical trap
(B) Thermostatic trap
(C) Thermodynamic trap
(D) Vacuum trap
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統計： A(207), B(159), C(151), D(397), E(0) #1444926
統計： A(207), B(159), C(151), D(397), E(0) #1444926
