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1.The preproduction-type test is a crucial step in the product development process.
预生产型试验是产品开发过程中的关键步骤。
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2.The company conducted a preproduction-type test to ensure the quality of their new product.
该公司进行了预生产型试验，以确保新产品的质量。
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3. The preproduction-type test was used to evaluate the performance of the new machine before it was released to the market.
预生产型试验被用来评估新机器在推向市场前的运行性能。