steel的现在完成时怎么写？

steel的第三人称单数（三单）为：steels...

...a steel mill.钢铁厂The V - N microalloy steel with yield strength of 550 MPa is produced by EAF - CSP route.目前,在EAF-CSP 流程中通过V -N 微合金化技术可成功生产屈服强度为550MPa的高强度低合金钢.This accomplished by mounting the elements on a heavy steel...

n.钢，钢铁，钢制品，兵器，钢铁工业vt.包上或镀上钢，使坚定adj.钢制的，钢铁业的，坚强的，[色彩]青灰色的...

steel的现在进行时为：steeling...

steel的音标：steel的英式发音音标为：[sti:l]steel的美式发音音标为：[stil]...

steel的复数形式为：steels...

steel的近义词/同义词有：Excalibur, knife, saber, rapier, foil, sword, cutlass, cold, dagger, blade, dirk, razor, scimitar, epee, steel, brace, harden, fortify, nerve, shore, stiffen, up, beef, strengthen, insure, invigorate, toug...

steel的一般过去时为：steeled...

His life was saved by a quarter-inch-thick bullet-proof steel screen.多亏一块1/4英寸厚的防弹钢板，他才捡了条命。Steel cable will be used to replace worn ropes.将用钢缆替换磨损的绳索。In the course of the 1930s steel production in Britain approximately ...