misc. figured iron
在超声波辐射下用前驱体法合成纳米尖晶石型铁酸镍。
Nanosized nickel ferrite spinel particles have been synthesized by a precursor approach in the condition of ultrasound radiation.
毕竟，这个由链子和T型铁组成的连接物品已经有50年没有进步了。
After all, the chain and T-bar fastening had not really advanced for 50 years.
指出该成矿带存在海底喷气沉积型铁铜多金属矿床和次火山型铜多金属矿床。
It is pointed out that there are sea bottom iron? Copper polymetallic deposits and sub? Volcanic copper polymetallic deposits in the ore zone.
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