A series of trays with sieves that vibrate to remove cuttings from the circulating fluid in rotary drilling operations is called the（）.

A semisubmersible with a positive GM，and TCG located st...

单项选择题A semisubmersible with a positive GM，and TCG located starboard of the centerline，inclines to an angle of（）.

A semisubmersible with a negative GM flops to an angle ...

单项选择题A semisubmersible with a negative GM flops to an angle of（）.

A semisubmersible which flops between forward and aft a...

单项选择题A semisubmersible which flops between forward and aft angles of trim is likely to have（）.