“permanent benchmark”的概念、定义、翻译、参考文献-科学参考

单词	permanent benchmark
释义	permanent benchmark [`pǝr·mǝ·nǝnt `bench´märk] ^ENGINEERING A readily identifiable, relatively permanent, recoverable benchmark that is intended to maintain its elevation without change over a long period of time with reference to an adopted datum, and is located where disturbing influences are believed to be negligible.
随便看	stat℧ stauractine staurolite Stauromedusae Staurosporae staurotide stave stay staybolt stayed-cable bridge stay time STD STDM STD recorder steadiness steadite steady bearing steady flow steady pin steady rest steady state steady-state cavitation steady-state conduction steady-state creep steady-state current

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