Tuning can include adding extra indexes to yield a more efficient access plan, which makes tables volatile to encourage index usage and avoid table scans if possible.
调优包括添加额外索引来生成一个更高效的访问计划，让表格变幻无常，进而鼓励索引的使用，如果可能的话也可以避免表扫描。
In experiments on rice-groundnut rotation at Bhubaneswar, as an average of two years, increase in fertilizer levels did not effect yield of rice (Table 6.).
在布巴内斯瓦尔的稻-花生轮作试验中，二年平均来看，提高施肥水平并不影响水稻产量(表6)。
Effect of plant density and fertilizer application on plantain yield in two soils from Colombia with different natural fertility is shown (Table 2).
表2说明了在哥伦比亚的两种不同天然肥力土壤上种植密度及肥料用量对大蕉产量的影响。
The frequency with which farmers can expect a legume yield increase from nitrogen fertilization is low for most species (Table 8).
对大多数种来说，农民们可以期望通过施用氮肥来使豆类作物增产的概率是不大的（表8）。
This paper studies the influence on dynamic state of soil water salt, groundwater table, groundwater quality, crop growing and yield generated by saline water irrigation.
研究了咸水灌溉对土壤水盐动态、地下水位、地下水质、作物生长及产量的影响。
Table 2 Effect of irrigation rate on tomato growth and yield …
表2不同灌水量对番茄产量的影响。
By using the process of discarding tailings with shaking table, the rough concentrate with the yield 49.
采用摇床抛尾工艺流程，可得到精矿产率49。
Since there are many columns on the table, specifying the columns would yield a extremely long query.
从桌子上有很多列，指定列将产生一个非常长的查询。
Since there are many columns on the table, specifying the columns would yield a extremely long query.
从桌子上有很多列，指定列将产生一个非常长的查询。
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