“pulse-echo method”的概念、定义、翻译、参考文献-科学参考

单词	pulse-echo method
释义	pulse-echo method [`pǝls ¦ek·ō ´meth·ǝd] ^METALLURGY A nondestructive test in which pulses of energy are directed into a part, and the time for the echo to return from one or more surfaces is measured.
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