watertight
resistant to water
so safe that no water will affect the hold
so strong that no water will come into the hold
第1题:
Close hatch covers and report.
第2题:
Tonnage openings must be closed by means of ______.
A.Press board
B.Steel hatch boards
C.Steel plates
D.Wooden hatch boards
第3题:
I think the hatch covers ________ all fixed up by you
A.was
B.were
C.be
D.been
第4题:
这些舱盖通常是用电力或液压驱动的。()
第5题:
开关舱的工作通常是由船员来做。()
第6题:
The primary barrier of a bulk carrier is formed by ______.
A.the single skin side shell and the inner bottom
B.deck strips,hatch covers and coamings
C.the vertically corrugated transverse watertight bulkheads
D.the single skin side shell between topside and hopper tanks,and the cross deck strips,hatch covers and coamings
第7题:
第8题:
A. parts
B. ideas
C. sorts
D. materials
第9题:
船舶的舱盖有多种类型。()
第10题:
高速和野蛮操作舱盖均是危险的。()