More than 20 helicopters began swooping in low over the ocean...20 多架直升机开始下降向海面俯冲。...better mapping of the ocean floor.对海底地形的更精确绘制...the Indian Ocean.印度洋Infrasonic observations of open ocean swells in the Pacific: Deciph...
数据记录仪还能迅速查明机械故障，减少维修次数。Data recorders also pin-point mechanical faults rapidly, reducing repair times.要求车主们减少驾车出行的次数。Car owners were asked to cut down travel.这种药能降低发病次数和严重程度.The drug can reduce the frequency and severity...
The city produced its own coinage from 1325 to 1864.1325年到1864年间，这座城市曾铸造过自己的硬币。These characteristics led to their being used for jewellery and eventually coinage.这些特性使得它们能成为珍宝,最后用来作货币.The silver coinage was repeatedly de...