最近我们用红色的超牌球，用球量需控制些。
Our usage of shuttlecocks has increased. We need to control the use of shuttlecocks.
在不同原料、不同碱度和不同燃料配加量的条件下，在实验室的烧结杯上做了球团烧结法实验研究。
A pot grate tests were conducted in the laboratory using different kinds of materials with various basicity and rate of solid fuel.
四球机试验结果表明含氮硼酸酯添加到基础油中，能显著提高其抗磨性能，且添加量存在一个最佳值。
The result shows that the anti_wear performance is increased significantly and the amount of addition has an optimum value.
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