无码高清视频|成人自拍视频|欧美成人午夜无码A片秀色直播|草美女视频网站|美女被操网站在线观看

<dd id="ot7w0"></dd>

<pre id="ot7w0"><legend id="ot7w0"><s id="ot7w0"></s></legend></pre>

單項選擇題

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

你可能感興趣的試題

單項選擇題

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

單項選擇題

A semisubmersible with a negative GM flops to an angle of（）.

A.heel
B.trim
C.list
D.loll

<sup id="rmpz3"><pre id="rmpz3"><div id="rmpz3"></div></pre></sup>

<ins id="rmpz3"></ins>