对于液体介质,引压管应相对于过程管线()至少1/12 ["A、向上倾斜","B、向下倾斜","C、平行","D、相交"]
当光伏发电站并网点频率高于50.2Hz时,光伏发电站具有至少运行()的能力。 ["2min","1min","30s","20s"]
吨(t)与公斤(kg)之间的关系是()。 ["t=1×103kg","t=1×102kg","t=9.8kg","t=9.8×102kg"]
《光伏发电系统接入配电网技术规定》中对电压运行适应性的要求并网点电压在()标称电压之间时,光伏发电系统应能正常运行。 ["90%~110%","85%~110","93%~110%","85%~115%"]
气动差压变送器是将差压转换为成比例的标准信号()MpA ["A、0.02~0.10","B、0.10~1.0","C、0.02~0.05","D、2~10"]
宋太医学分科。