This ()was repaired in Singapore.
第1题:
The net productivity per gang-hour can be improved through a decrease of ______.
A.cranes/derricks
B.crane/derrick cycles
C.crane/derrick cycle time
D.weight per package
第2题:
Do you want the derrick adjusted upwards or downwards? ()
第3题:
If the derrick is overloaded, what will happen?
第4题:
The ()of the derrick is out of order.
第5题:
The ()(吊杆托架) supports the derrick.
第6题:
The ()is fixed at the bottom of the derrick.
第7题:
请把吊杆甩到舱口上方好吗?()
第8题:
The damaged derrick________now.
A.has repaired
B.is repaired
C.is being repaired
D.will be repaired
第9题:
The()(千斤索) is a wire used to take the weight off.
第10题:
I think you’d better use the ()(岸吊).