To minimize the disturbance of other sounds the frog calls were recorded between 8 p.m. and midnight . 为了尽可能地减少其他声音的干扰，从下午8点到午夜记录蛙叫。
The man said that the pen was worth $ 10, but as a special favor, he would let me have it for $ 8 . 那人说那支钢笔值十英镑，但作为特别优惠，他愿八英镑卖给我。
By 1980, twenty-five nutrition and feeding programs were operating at a total cost of $ 8. 8 million . 到1980年，共实行了二十五种营养饮食规划，总费用880万美元。
In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity . 换句话说，嘌呤环上第8位碳被氮所取代并不丧失活性。
"at the time murder was committed, i was travelling on the 8 o'clock train to london, " said the man . “在凶杀案发生的当时，我正坐着八点的火车去伦敦。”这个人说。
Another proteolytic enzyme, trypsin, is quite inactive at that ph but functions effectively at a ph of 8 . 另一种蛋白质水解酶--胰蛋白酶在此PH时活性甚低而在PH8时效率最高。
Subsidies from the individual countries amounted to almost 8 percent of the gross value of milk at domestic prices . 按本国价格计算，每个国家的补贴已占牛奶生产总值的近8。
There is an onset of high frequency motion which is common to both components about 1. 8 sec. after the beginning of the record . 大约在记录开始18秒后，两种分量都有高频运动出现。
After a mission of 8 hours and 40 minutes, the command module splashed down in the pacific north west of hawaii . 指挥舱经过一次八小时又四十分钟的任务以后，在夏威夷西北的太平洋上降落了。
But samples of effluent collected over the same period of time measure the treatment given to weak waste that entered the plant prior to 8 a.m . 但在同样时间收集的流出液，则用作测定上午8点前进入装置经过处理的废水的浓度。
