The Engineering Index Annual abstract number is found at the beginning of each abstract.
在每篇ei摘要的开头，是工程索引年刊的文摘号。
Reliability is an important index of the quality of product or engineering project.
可靠性是产品或工程的质量的重要指标。
Reliability is an important index of the quality of product or engineering project.
可靠性是产品或工程的质量的重要指标。
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