“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	International Quiet Sun Year international radio silence international rules of the road international signal code international spheroid international standard annealed copper international synoptic code international system of electrical units International System of Units international table British thermal unit international table calorie international telecommunications service international telegraph alphabet International Telegraphic Consultative Committee code 2 international thread international unit international volt International Year of the Quiet Sun internetting internides internode internuclear internuclear distance internuncial neuron interoceptor

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