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。
Love falls in love with love comes like an echo sounding back searches its mirrored shadow within a look.
爱与爱彼此相恋，犹如回声在激荡，寻找镜中的影像，在短暂的一瞥中。
Fog comes, call Captain at once. Began to keep on radar for detecting to the sea all round atr a interval of every 20 mins. Sounding by echo 52 fms. S/B. Fog sig started.
雾来了，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52拓，备车，开始雾号。
Echo sounding devices were early used in making maps of the ocean floor.
讲的是回声定位仪器最早用于绘制海底地图。很容易找到对应的答案。
Call me when the fog set in. Sound regulation whistle, attend to echo sounding and start radar at an interval not more than 20 minutes.
下雾时要叫我，鸣放汽笛，动用测深仪，启动一次雷达不要超过20分钟。
Survey standards for multibeam echo sounding will be developed with reference to worldwide specifications.
探讨先进国家的规范标准以草拟国际适用的多音束测深规范；
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。
I asked, my voice sounding like a shrill echo.
我问。我的声音象是尖利的回声。
I asked, my voice sounding like a shrill echo.
我问。我的声音象是尖利的回声。
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