Reporting Range Constant(报告范围)取值增大时,越容易触发的是哪个事件() ["1A","1B","1C","1D"]
微量营养元素从缺乏到过量之间的临界范围小,因此,在施用微肥时必须注意()。
汽轮机水平调整元件装配间隙的标准值为()mm。 ["0.010~0.020","0.050~0.070","0.060~0.085","0.020~0.045"]
汽轮机试运转至少运行()h并要做汽轮机跳闸试验。 ["1","0.5","2","4"]
电气化区段运行的机车应有“()”的标识。
复混肥料中,氯离子的质量分数大于()的产品应在包装袋上标明“含氯(高氯)”。