The roller hatch beam at the edge of the open section of the hatch shall be ______ so that
A. braced
B. chopped
C. lashed or pinned back
D. locked
What is the most probable cause of reduced capacity in a reciprocating air compressor ________.
A. Carbon on cylinder heads
B. Faulty unloader
C. Leaking air valves
D. Plugged air cooler
在无流海域,当风速为10m/s时,冰山的移速约为。
A. 0.2m/s
B. 2.0m/s
C. 5.0m/s
D. 10.0m/s
When the relative motion display is selected all tracked objects will display ______ vectors.
A. motion
B. stationary
C. dynamical
D. flashing