单词	ferrotungsten
释义	ferrotungsten noun fer·​ro·​tungsten "+ : a crude alloy of iron and tungsten used in making alloy steels Word History Etymology ferro- + tungsten First Known Use 1874, in the meaning defined above
随便看	pyorrhoea pyorrhoeas pyos pyoses pyots pyoxanthose pyr pyr- pyracanth pyracantha pyracanthae pyracanthas pyracanths pyracene shear modulus shear off shear pin shear plane shear skid shear steel shear strength shear stress shear structure shear wave shear zone

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