“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	puffer puffing gun puff of wind pug mill puking pulaskite pulegium oil Pulfrich refractometer pull-apart pull crack pull-down menu puller pulley pulley lathe pulley stile pulley top pulling pulling figure pulling pillars pull-in torque pullorum disease pull-out torque pull rope pullshovel pull strength

科学参考收录了103327条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。