randomized complete block造句

例句与造句

1. a randomized complete block design ( rcbd ) has been used under the field conditions to compare the effect of four treatments : 1 ) entire quantity of straw returned to the soil, but not cut into pieces ( treatment a ), 2 ) half quantity of straw returned, not cut into pieces as in treatment a ( treatment b ), 3 ) half quantity of straw cut into pieces returned ( treatment c ), 4 ) ck ( treatment d ), without any straw returned to the filed
   田间实验采用随机区组法，分四种情况：1)全量整株稻草还田；2)半量整株还田；3)半量切碎还田4)对照，即除根茬外无额外稻草还田四个处理。试验结果表明，除处理2外，所有处理对土壤有机质的影响不明显，但稻草还田处理降低了土壤的容重，这意味着土壤的孔隙度增加了。
2. It's difficult to find randomized complete block in a sentence. 用randomized complete block造句挺难的