单项选择题
A series of trays with sieves that vibrate to remove cuttings from the circulating fluid in rotary drilling operations is called the（）.
A.shale shaker
B.settling pit
C.desilter
D.desander
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相关考题
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单项选择题
A semisubmersible with a positive GM，and TCG located starboard of the centerline，inclines to an angle of（）.
A.heel
B.trim
C.list
D.loll -
单项选择题
A semisubmersible with a negative GM flops to an angle of（）.
A.heel
B.trim
C.list
D.loll -
单项选择题
A semisubmersible which flops between forward and aft angles of trim is likely to have（）.
A.KML less than KGL
B.an off-center LCG
C.LCG greater than LCB
D.KML greater than KMT
