胎方位(Fetal Position)
胎儿先露部的指示点与母体骨盆的关系称为胎方位。
The political centre of the Commonwealth is()
The city centre was wiped out by the bomb
A:covered B:destroyed C:reduced D:moved
What is important …… when
transferring …… position from GPS to a
chart?
A:Reading the position correctly B:Plotting the position correctly C:Make sure that the chart and theGPS use same datum D:Make sure the map is updated
The control mode where the position of the final control element has a linear
relationship with the position or value of the controller, variable is known as__________.
A:two position control B:proportion control C:reset control D:rate control
In a pneumatic automation system, a unit producing a signal to govern the position of
the controller of the measured variable, relative to the value of the measured variable,
is said to have________.
A:reset action B:proportional action C:two position action D:rate action
Rudder position is shown on the bridge by the .
A:rudder angle indicator B:follow-up gear C:telemotor position D:relief valves
"The stowage position of the cargo should be identified in advance
because ______.
A:the specific EMS SPILLAGE SCHEDULE is determined by the position of the cargo B:in the event of a spillage it takes time to allocate the position of the cargo C:sometimes it is not directly available from the Dangerous Goods Manifest and StowagePlan D:some materials to be used could be hampered by an inaccessible stowage locateon"
When own ships position input to ECDIS wrong, what is the
result?
A:Nothing B:ECDIS will give warning C:ECDIS will automatically be switched off D:Position, range and bearing taken on the ECDIS will be wrong