试验检测对于提高工程质量，加快工程进度，降低造价，推动施工技术进步，起着非常重要的作用。
Detection test for improving project quality, speed up the progress of works, reduce costs, promote the construction of technological progress, play a very important role.
经济增长是由资本、劳动力、技术等多种要素共同推动的，各要素投入的数量、质量和效率决定了产出的增长。
Economic growth is promoted by many factors such as capital, labor and technology, and the output growth is determined by the quantity, quality and efficiency of each factor input.
交流调速技术是当今节电、改善工艺流程以提高产品质量和改善环境、推动技术进步的一种主要手段。
The technique for AC adjusting speed is a main means of saving power, improving industrial flow to improve quality of products and environment, advancing the development of technique.
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