Fog sets in, call master at once. Began to keep on radar for detecting to the sea all round at an interval of every 20 minutes. Sounding by echo 52 fathoms. Standby Engine. Fog signal started.
雾起，立即召唤船长，开始保持每20分钟用雷达环扫一次海面，回声测深52拓，备车，开启雾号。
These structures had been detected years earlier by echo-sounding instruments, but they had never been penetrated in the course of drilling.
这些结构在早些年曾被回声探测器探测到，但是它们从未被钻探过。
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