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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The process is assumed to have an arbitrary acidic feed stream and a buffer stream whose key reaction invariants are time-varying and unknown.
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A continuous culture operated at a dilution rate of 0.055 h-1 and a lactic acid feed concentration of 30 gL-1 had a propionic acid productivity of 0.59 gL-1h-1.
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Replacement of acid feed by CO2 injection for effluent pH control and changes in ash pond chemistry occurred concomitant with elimination of a substrate floc; increased species richness and densities of invertebrates were subsequently observed.
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| | To reveal the nutritive value of the wheat straw treated with alkali and supplied urea, the feeding experiment was done with.which Hebei fine-wool sheep which were fed with the wheat straw. The results showed: (1) When the sheep being fed with the straw, live weight gain, gain concentrate ratio and straw intake increased. The wheat straw treated with 7% Ca(OH)2+2% urea was best in nutitive value. (2) When the sheep being fed with the wheat straw, supplied with 274g concentrate and some acid feed, daily gain... | | 为确定补氮碱化处理秸秆的营养价值,用河北细毛羊作为试验动物开展了动物饲养试验.结果表明:(1)饲喂补氮碱化处理小麦秸能显著提高羊的增重、增重耗料比和秸秆采食量.尤其7%熟石灰+2%尿素处理小麦秸最好.(2)在酸性饲料调和的情况下,用补氮碱化处理小麦秸喂羊,日补饲精料274g/只,日增重可达98·21g/只,耗精料增重比为2·79.(3)酸性饲草饲料是进一步提高补氮碱化处理小麦秸饲喂效果的增效剂. | | 文摘来源 | |   |
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