主起吊绞车和升降机系统可通过船底72英尺宽的洞，提升1，250吨重的管道和机械。
The main hoist winch and a system of elevators lift 1,250 tons of pipes and machinery through the 72 inches wide hole at the bottom of the boat.
泳池的上表面长21米宽18米，但越往深处越窄，像一个垂直的深洞。
The pool at the surface is 21m by 18m but it becomes a narrow well-like hole as the depths plummet straight down.
观察上颌前部牙槽骨内圆柱洞形扩宽后行同期人工牙种植的临床效果。
To investigate the clinical effects of dental implantation after column hole shape endosseous expansion in alveoli of anterior maxilla.
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