现场选题为了缩小某一质量特性波动幅度,实现均衡生产,降低消耗,保证产品(工作)质量长期稳定在先进()内的活动。
A、稳定范围
B、标准范围
C、稳定水平
D、标准水平
参考答案:D
用电解法提取氯化铜废液中的铜,方案正确的是( )
A.用铜片连接电源的正极,另一电极用铂片
B.用碳棒连接电源的正极,另一电极用铜片
C.用氢氧化钠溶液吸收阴极产物
D.用带火星的木条检验阳极产物
The moisture equilibrium chart can be used to determine the().
A.Absolute moisture content of the air surrounding a hygroscopic cargo when moisture equilibrium exists
B.Dew point temperature that the air surrounding a hygroscopic commodity will have when in moisture equilibrium with that commodity
C.Enthalpy of the air surrounding a hydroscopic cargo which is in moisture equilibrium with the cargo
D.Temperature at which moisture equilibrium will occur in a cargo hold containing a hygroscopic cargo