【简答题】如图所示的敞口容器液位测量系统,已知容器内介质密度 ρ =800kg/m 3 , h 1 =2m , h 2 =2m ,液位高度在 0~h 1 范围内变化,请问: 取 g=10m/s 2 ( 1 )该差压变送器应怎样进行零点迁移?迁移量是多大?( 3 分) ( 2 )迁移后变送器的测量范围和量程分别是多少?( 3 分)
【单选题】Some people believe that international sport creates goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true: that...
A.
mated goodwill between the nations
B.
bred only false national pride
C.
barely showed any international friendship
D.
led to more and more misunderstanding and hatred
【简答题】如图所示的敞口容器液位测量系统,已知容器内介质密度 ρ =800kg/m 3 , h 1 =2m , h 2 =2m ,液位高度在 0~h 1 范围内变化,请问: 取 g=10m/s 2 ( 1 )该差压变送器应怎样进行零点迁移?迁移量是多大?( 3 分) ( 2 )迁移后变送器的测量范围和量程分别是多少?( 3 分) (3)若变送器输出16mA,则知液位高度为多少?
【单选题】Some people believe that international sport creates goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true: that...
A.
created goodwill between the nations
B.
bred only false national pride
C.
hardly showed any international friendship
D.
led to regional conflicts and heated quarrels within courts
【单选题】数控编程FANUC系统中()用于程序全部结束,切断机床所有动作。
【单选题】FANUC系统中( )用于程序全部结束,切断机床所有动作。
【单选题】Some people believe that international sport creates goodwill between the nations and that if countries play games together they will learn to live together. Others say that the opposite is true that ...
A.
created goodwill between the nations
B.
bred only false national pride
C.
barely showed any international friendship
D.
led to more and more misunderstanding and hatred