rod iron

The prophet Lehi compared the word of God an iron rod.

先知李海把神的话比喻成铁杆.

Try digging all day with an iron rod and see how you feel, he said, adding that he had abandoned his university studies for the promise of fast riches.

本康说，你试试整天用铁棍挖矿，看看是什么感觉。他接着说，就是因为有人向他保证干这行能快速致富，他放弃了大学学业。

The Surefooted enchantment now requires Fel Iron Rod ( was Runed Eternium Rod ).

“靴子-稳固”附魔现在需要符文魔铁棒 ( 原来是符文恒金棒 ).

The friction and wear of rod-like mullite dispersed yttria stabilized tetragonal zirconia polycrystals ( MDZ) sliding against a high-chromium cast iron in 5% NaOH solution containing 2wt% SiO_2 as the abrasive particles was investigated on an MM-200 test rig in a block-on-ring configuration.

研究了柱状莫来石弥散四方氧化锆多晶陶瓷（MDZ）在含质量分数2%SiO2磨粒的5%NaOH溶液中的摩擦磨损性能。

John is ruled by his wife with a rod of iron.

约翰被他的妻子严加管束.

However, some fathers go so far as to abuse children rulewith a rod of iron.

但有的父亲把一个“严”字衍化为棍棒教育、打骂教育.

She rules her husband with a rod of iron.

她严厉管束她的丈夫.

If you work hard enough , you can grind an iron rod into a needle.

只要功夫深, 铁棒磨成针. 英语怎么说?