经过反复试验，这种灯成功地生产出来了。
This lamp was successfully produced after repeated experiments.
他们经过反复试验确立了目前的操作方法。
They established their present working methods by a process of trial and error.
经过反复试验，选取最佳方案将卫星遥感的地表温度转换成地面空气温度。
The optimum scheme is presented to convert the remote sensing ground temperature to air temperature through a number of experiments.
到了900多年前的北宋时期，平民发明家毕升，经过反复试验，发明了活字印刷术。
During Northern Song Dynasty more than 900 years ago, Bi Sheng invented movable-type printing after years of experimenting.
人类不是一个目的性创造的巅峰之作；像其他一切事物一样，他们经过反复试验不断探索进化而来，上帝没有直接插手人类的创造。
Human beings were not the pinnacle of a purposeful creation; like everything else, they evolved by trial and error and God had no direct hand in their making.
坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜体字母，他写道：“经过反复试验后，我们发现有个公式恰好可用来破译法官的密码。”
"After much trial and error, we found a formula which fitted," wrote Tench, who had nothing to do with the Brown case but discovered the italicized letters when studying the ruling.
假设文档不完整或者已经过期了(可能是这样)，那么反复试验就是成功的良方。
Assume the documentation is incomplete and outdated (it probably is). Testing, though, is the recipe for success.
“当中经过多次反复试验，还有许多代价高昂的错误，”她说。
"There was a whole lot of trial and error, and a lot of expensive mistakes," she says.
经过对原子灰用粉料反复试验和大规模工业生产及应用，达到了预期的良好效果。
The title powders for putty, through trial and practical production and large scale application has shown desirable performance.
坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜 体字母，他写道：“经过 反复试验后，我们发现有个公式恰好可用来破译法官的密码。”
After much trial and error, we found a formula which fitted, " wrote Tench, who had nothing to do with the Brown case but discovered the italicized letters when studying the ruling."
坦奇并未插手布朗一案，但他在阅读判决书时发现了那些斜 体字母，他写道：“经过 反复试验后，我们发现有个公式恰好可用来破译法官的密码。”
After much trial and error, we found a formula which fitted, " wrote Tench, who had nothing to do with the Brown case but discovered the italicized letters when studying the ruling."
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