“apron slab”的概念、定义、翻译、参考文献-科学参考

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单词	apron slab
释义	apron slab 护坦板
随便看	standard terminal arrival route standard termination standard test standard test block standard test conditions standard test frequency standard test method standard test output standard test piece standard test procedure standard test specimen standard test tone power standard test-tone power standard test weight standard thermodynamic scale standard thermometer standard thickness tape standard thimble standard thread ring gage standard throw-blasting charge standard time standard time zone standard titrimetric substance standard tolerance unit standard ton