The selection of center distance and gear ratio distribution for a reducer with double-circular-arc gear will have a direct effect on its size, weight and loading capacity.

双圆弧齿轮减速器中心距和传动比分配的确定，直接影响减速器承载能力、重量和体积。

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The metallocene polyethylene with a relative molecular weight distribution higher than 4 could be obtained by using the combined catalyst having 1 : 1 molar ratio of APE-1/APE-2.

高压聚合试验中 负载型APE-1和APE-2催化剂按照摩尔 比1：1复配，可以得到相对分子质量分布大于4的茂金属聚乙烯。

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Good sidelobe performance can be achieved over wideband when subarray overlap ratio equals 2 and Taylor weight distribution is used at element and subarray stage.

当在子阵级和单元级使用泰勒分布，并且子阵叠加比为2时，工作在宽带、宽角下的阵列可以获得较好的副瓣性能。

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