No more than a dozen high-value detaineeswere held at the Polish black site, and none have been released from governmentcustody; accordingly, no first-hand accounts of conditions there have emerged.
仅仅只有不超过12名高级囚犯被关押在波兰的黑狱中，而且也没有任何人得到过释放；因此也没有泄露过任何相关的一手资料。
It seemed of little practical value, but he liked designing and building the equipment-and driving back and forth along the Pacific Coast Highway to his sampling site at Big Sur was fun.
当时他的这一举动看起来没什么实际价值，但这个年轻人喜欢设计和制造设备——乐此不疲的往返于太平洋海岸的高速公路和位于大苏尔的采样点间。
The results show that the system has high measuring accuracy, high applicability at the site and relatively higher practical value.
结果表明，该系统测量精度高，现场适应性强，具有较高的使用价值。
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