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1·The activity rate is the ratio between the number of tokens currently assigned and the total number of tokens for an endpoint.

活动频率是指当前分配的令牌数和端点的令牌总数的比率。

2·This is very economical, with a high ratio of visual activity to value.

这是非常经济的，具有很高的视觉活动的比率值。

3·In trying to record the brain's electrical activity off the scalp, he adds, people assumed that the signal-to-noise ratio and the information content of these signals were limited.

在尝试记录头皮以下的大脑电活动时，他补充说，“人们想当然的认为信号的信噪比和这些信号的信息内容是有限的。”

4·Whether the age ratio is a prophecy or fallacy, the importance of pension activity to markets is clear.

无论年龄比例是预言还是谬论，退休金活动对于市场的重要性显而易见。

5·The activity of soluble starch synthase was 1. 3 times higher that that of the granule-bound starch synthase, corresponding to the ratio of amylopectin to amylose.

可溶性淀粉合酶峰值比淀粉粒结合的淀粉合酶活性峰值高1．3倍，与支链淀粉和直链淀粉的比例相对应。

6·Cost-benefit ratio criterion----No activity where the present value of net benefits is less than zero should be taken.

成本效益分比率准则——净利润现值低于零的无活力地区应该被承揽。

7·The influences of temperature, pressure, space velocity and ratio of hydrogen to nitrogen on the activity of ruthenium based ammonia synthesis catalyst were investigated.

用氨合成催化剂性能评价装置，研究了反应温度、压力、空速和氢氮比对以活性炭为载体的钌基氨合成催化剂活性的影响。

8·Effects of the activity of ground-strontium slag as cement admixture were analyzed from three aspects: mortar strength value, compressive strength ratio of mortar and specific strength indicators.

分别从胶砂强度值、胶砂抗压强度比和比强度指标三方面分析磨细锶渣作为水泥掺合料的活性效应。

9·The cultivation condition affected the cell growth, the ice nucleation activity and the xanthan gum ratio.

培养条件影响冰核细菌的生物量、冰核活性和产胶率。

10·In this paper, experimental study is made on decomposition temperature, decomposition ratio of calcined anhydrite, activity of decomposition products and stimulating effect on fly ash.

对高温煅烧硬石膏的分解温度与分解率，分解产物的活性与对粉煤灰的激发效应进行了试验研究，提出了初期和后期两期激发机理。