The effecting factors such as consumption of sulfuric acid, catalyst, temperate, time, ratio of liquid to solid, and stir speed on leaching rate has been studied in detail.
详细考察了硫酸和催化剂的用量、浸出温度、浸出时间、液固质量比、搅拌速度等因素对浸出率的影响。
When electrode negative ratio is zero, which is using MIG welding with DC ami welding wire being positive polarity, weld penetration is maximum , wire melting speed and deposition rate are minimum;
当负极性比率等于零即直流且焊丝为正极性的MIG焊时，其焊缝熔深最大，焊丝熔化系数最小，熔敷速度最小；
We'll acquire the small broken rate when speed ratio is big, the angle of knife dish is small, amplitude and frequency is small, the number of blade is 4.
速度比较大、刀盘倾角较小、振幅与频率较小、刀片数量为4把时可以获得较小的破头率。
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