计算离子交换器中装载树脂所需湿树脂的重量时,要使用()密度。
A.干真;
B.湿真;
C.湿视;
D.真实。
参考答案:C
—Do you still remember the accident ?
—Yes. Actually, I have experienced nothing more .
A.frighten
B.to be frightening
C.frightened
D.frightening
根据刺辊除杂要求不同,应如何正确调节除尘刀工艺?