掉出

Probably the first living being to stand here since the ancient progenitors had vanished into history and legend.

而现在，她也许是在这个远古的种族变成历史和传说之后，第一个站在这儿的生物。

Some debris was thus formed with shinning sparks and its components were almost metal, but not oxide. This mechanism is quite different from oxidational wear and is now termed as extrusion wear.

观察磨屑的组成可发现大部分为金属而非氧化物，这种情形与氧化磨耗有相当大地不同，我们称之为挤出磨耗。