Just two years earlier, IBM had also developed the first random access disk storage device, the random access Memory for Accounting and Control (RAMAC) 350, so there was a place to store this stuff.
就在两年前，IBM还开发了第一个随机访问磁盘存储设备，RandomAccessMemoryforAccountingandControl (RAMAC) 350，所以有了存放这些东西的地方。
The Rayleigh wave technique is useful and its effect is satisfactory as proved by the tests using RAMAC/GPR in Chang Ba Lead Zinc Mine.
最后作者采用瑞典RAMAC/GPR便携式雷达，对探测的空区进行了检验。 实践证明，瑞雷波探测方法取得了较好的效果。
The Rayleigh wave technique is useful and its effect is satisfactory as proved by the tests using RAMAC/GPR in Chang Ba Lead Zinc Mine.
最后作者采用瑞典RAMAC/GPR便携式雷达，对探测的空区进行了检验。 实践证明，瑞雷波探测方法取得了较好的效果。
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