关燃油跳闸阀的操作可在何处操作？
参考答案：
在DCS炉前油系统画面上、MFT或OFT动作自关。
— I'm sorry to have caused you so much trouble.
—_______.[ ]
A. That's all right
B. My pleasure
C. Nothing at all
D. You're welcome
蛤蟆油应采用低温养护法保管。()
