In order to recreate the magnetic shielding, they used ferrite plate and copper tape placed on the back of coils - this hindered transmitted energy from getting close to human tissue.
他们将铁酸盐板和铜带置于线圈背部形成磁屏蔽，这样可以避免传输的电量过于接近人体。
Copper and zinc in sludge extract were removed by improved ferrite coprecipitation process using lime milk as neutralization reagent.
采用改进铁氧体共沉淀法，用石灰乳溶液作中和剂，从污泥浸出液中去除铜、锌。
Adding different alloy combination of re, copper and titanium, then through gestation and nodulizing disposal, we got the fine texture of ferrite pearlite and spheroidal graphite.
通过在中硅耐热铸铁中添加不同组合的合金元素稀土、铜、钛使其合金化，经过孕育和球化处理，得到铁素体+珠光体+球状石墨的金相组织。
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