In the KDF filter, effect of contact reaction time, filter bed height, and filtering velocity on lead and mercury removal was studied.
以KDF为滤料，研究了接触反应时间、滤层高度和滤速对铅和汞去除效果的影响。
Index of fruit shape decreased by BTH treatment and increased by KDF treatment at harvest.
BTH处理使果形指数下降，KDF提高了果实整齐度。
The key derivation function (KDF) then takes the secret agreement and produces the key material as output.
密钥派生函数 （KDF） 然后使用此机密协议，并生成密钥材料作为输出。
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