A.two position control
B.proportion control
C.reset control
D.rate control
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A.The period of time in which the set point and the control point coincide
B.The periodic change between the set point and the control point
C.The variable difference between the set point and the control point
D.The constant difference between the set point and the control point
A.Tow position
B.Proportional
C.Reset
D.Rate
A.the ISM Code
B.the ISPS Code
C.the IBC Code
D.the IGC Code
A.English, French or Spanish
B.Chinese, English or French
C.English, French or Japanese
D.Chinese, English or Spanish
A.six months
B.two years
C.four years
D.five years
最新試題
When does auxiliary burner of incinerator put into operation? （）Ⅰ. start incinerator when it is coldⅡ. the sludge for dealing with is littleⅢ. the sludge for dealing with is largeⅣ. the water and impurity in sludge are too muchⅤ. the temperature in incinerator is lowⅥ. dealing with little solid rubbish
Which of the following items don’t belong to dock repair works?（）
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The main purpose of port State control is not to（）
If two A.C.generators are to be operated in parallel, the load is distributed evenly by（）
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Using a file without a handle may result in （）
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