单株有效花球数对单株花产量的直接效应最大，其次为顶花球直径。
The direct effect of number of effective cones per plant was the strongest, followed by diameter of primary head.
几乎所有癌症病人的疼痛都可得到有效缓解，而且不用花多少钱。
Cancer pain can be relieved, cheaply and effectively, in nearly all patients.
花自己的时间建造自己的公司，是实现这些目标的一种相当有效的途径。
Spending your time building your own company is a pretty effective way of achieving those goals.
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