| 单词 | extensive tests |
| 释义 | extensive tests Four years ago, after extensive tests in quarantine, it was released at eight top-secret sites around the country. Times, Sunday Times In the next few weeks, it will perform some of its most extensive tests yet. The Sun But the device was found to have a battery fault and extensive tests detected no radioactive substances. Times, Sunday Times The new problem emerged after extensive tests of the manifold, the structure that controls oil production from wells on the seabed, which revealed metallurgical weakness. Times, Sunday Times It will be re-assembled and have extensive tests before starting operations. The Sun |
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