12l

Backwash parameters are summarized as these : single air scouring intensity is 10 ~ 12L / ( m2 ﹒ s ), last time is 3min ;

反冲洗参数为：单独气冲的强度为10～12L/（m2·s），历时3min；

The flows in horizontal drainage pipes from 9L , 12L flush tanks of sit toilets are measured and compared with the flows calculated from two formulas of pipe designing in drainage system . The disadvantage of the formulas is described .

测定了9L和12L水箱的坐式大便器出水时排水横管中的流量，并将之与设计中使用的两个流量计算公式相比较，指出两个流量计算公式的不足。

In spring stubble , yield per plant of 4L treatment decreased obviously after 79d of setting , but yield per plant of 8L treatment had no distinct difference with CK and 12L treatment ; so we can use 8L rooting-zone volume to produce early ripe cucumber in spring .

春茬4L处理的黄瓜定植后79d单株产量显著降低，但8L处理与前两个处理无显著差异，生产中可利用8L的根域体积进行春季黄瓜的早熟栽培；

The research made the following aspects clear : 1 . the short daylength control ( 8L + 16D )~( 12L + 12D ) in adzuki bean limits the growth of nutritorium and accelerates reproductive organ differentiation . The older the seedling stage , the more notable the control effect ;

研究表明：1）在（8L+16D）-（12L+12D）条件下的短日处理对小豆有抑制营养器官生长、促进生殖器官分化的作用，而且苗龄越大处理效果越显著；