第二个问题是避免过度使用数据库或计算性资源，防止生成重复数据。
The second problem was avoiding excessive use of database or computational resources in generating duplicate data.
德拉反复数了三次，还是一元八角七，而第二天就是圣诞节了。
One dollar and eighty-seven cents. And the next day would be Christmas.
第二种容量管理办法可近似地认为是通过重复数据删除或数据压缩来减少主存储磁盘上的数据。
The second capacity management approach to consider is reducing data on primary disk storage via data deduplication or data compression.
使用用“你们这些人”作为一种替换第二人称复数的形式绝对是一个坏习惯，它因暗示你与听众的熟悉程度，从而降低你的信息传递的有效性。
Using "you guys" as an all-purpose substitute for the second-person plural is a bad habit that can undermine your message by making assumptions about how familiar your audience really wants to be.
如果第一个参数为一个字符串，将它将被编译成一个复数并且函数调用必须不能要第二个参数。
If the first parameter is a string, it will be interpreted as a complex number and the function must be called without a second parameter.
此处我们不考虑第二人称的复数变位，因为这种形式只在西班牙应用。
In this website vosotros and vosotras are not going to be considered because these forms are just used in Spain.
本实用新型涉及一种真空元件，包括第一玻璃基材、第二玻璃基材以及复数个金属支撑物。
The utility model relates to a vacuum element, which comprises a first glass substrate, a second glass substrate and a plurality of metal supports.
德拉反复数了三次，还是一元八角七，而第二天就是圣诞节了。
Three times Della counted it. One dollar and eighty - seven cents. And the next day would be Christmas.
本发明公开了一种可扩张的医疗装置，包括复数个细长撑条，形成可从第一直径扩张至第二直径的大致圆柱形的装置。
An expandable medical device includes a plurality of elongated struts, forming a substantially cylindrical device which is expandable from a first diameter to a second diameter.
而第二种方法更精湛和实用，是把复数在数学上等价于物理问题的一种方法。
The second method is much more elegant and powerful, a way of making the complex Numbers mathematically equivalent to the physical problem.
德拉反复数了三次，还是一元八角七，而第二天就是圣诞节了。
Three times Della counted it. One dollar and eighty-seven cents. And the next day would be Christmas.
德拉反复数了三次，还是一元八角七，而第二天就是圣诞节了。
Three times Della counted it. One dollar and eighty-seven cents. And the next day would be Christmas.
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