In the year to date the roll yield has been minus 13.35%, and the annualised yield on the next two months 'contracts is minus 38.4%.
时至今日，展期收益为- 13.35%，而且未来两个月的收益率以年率计算的话为- 38.4%。
Investors may actually have caused their own difficulties. As they have tried to exploit the positive roll yield, the returns have disappeared.
很有可能是投资者给自己制造了这些麻烦。他们尽力去从正展期收益中榨取利润，但是收益完全消失了。
The heredity of resistance to potato leaf roll and mosaic viruses and its relation to yield characters in potato was studied.
本文研究了马铃薯对卷叶和花叶病毒抗性的遗传及与产量性状的关系。
The influences of the maximum pressure, the average velocity and the slide - roll ratio on the yield thickness are discussed in detail.
本文还给出了用膜厚形式表示的屈服准则，并详细讨论了最大压力、平均速度和滑滚比对屈服膜厚的影响。
Excellent work roll cooling and thermal crown control are the effective measures for reducing work roll consumption, controlling plate shape and enhancing production yield.
良好的工作辊冷却及热凸度控制是降低工作辊消耗、控制板型、提高生产收得率的有效措施。
The double roll press is a washing equipment which assembles washing, dehydration, substitution and press with high pulp concentration and extraction yield.
双辊挤浆机是集洗涤、脱水、置换和压榨于一体的洗涤设备，具有较高的出浆浓度和提取率。
The double roll press is a washing equipment which assembles washing, dehydration, substitution and press with high pulp concentration and extraction yield.
双辊挤浆机是集洗涤、脱水、置换和压榨于一体的洗涤设备，具有较高的出浆浓度和提取率。
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