“root penetration”的概念、定义、翻译、参考文献-科学参考

单词	root penetration
释义	root penetration [`rüt ´pen·ǝ´trā·shǝn] ^METALLURGY The depth of penetration of the weld metal into the root of a joint.
随便看	unsigned integer unsigned real number Unsin engine unsolicited message unsprung axle unsprung weight unstable unstable colon unstable equilibrium unstable graph unstable isotope unstable particle unstable wave unsteady flow unsteady-state flow unstriated fiber uns-trimethylbenzene uns-, unsym- unsurveyed area untuned unused time unwater unwind up up-and-down method

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