【单选题】在变频器中,P1082=50表示( )。
【单选题】对于膜过滤下列叙述正确的是
A.
过滤介质可使用滤纸、滤布、纤维、多孔陶瓷、烧结金属等多种材料
B.
超滤由于具有冲刷膜表面的作用可完全消除浓差极化现象
C.
反渗透膜可透过无机离子因此工业中可用于海水淡化处理
【多选题】会计人员具体办理会计工作交接,其程序有()。
【单选题】对于膜过滤下列叙述正确的是
B.
超滤由于具有冲刷膜表面的作用可完全消除浓差极化现象
C.
反渗透膜可透过无机离子因此工业中可用于海水淡化处理
D.
过滤介质可使用滤纸、滤布、纤维、多孔陶瓷、烧结金属等多种材料
【单选题】we wish to stress that shipment must be made within the prescribed time limit,as a further____will not be considered by our end-users.
【单选题】We wish to stress that shipment must he madewithin the prescribed time limit,as a further __________will not he considered by our end-users.
【单选题】WE WISH TO STRESS THAT SHIPMENT MUST BE MADE WITHIN THE PRESCRIBED TIME LIMIT,AS A FURTHER____WILL NOT BECONSIDERED BY OUR END-USERS.