Test performance varied between lots, and widely between similar products, confirming the advisability of lot-testing post purchase and prior to use in the field.
同种产品不同批次之间的检测效果存有差异，而同类产品之间的检测效果差异更大，由此进一步确认，购买产品后并在实际使用前进行抽批检验是可取的。
In order to verify the performance of fracturing truck and plunger pump, bench test, final assembly test and field industrial test should be performed.
为了验证压裂车和柱塞泵的性能，进行了台架试验、出厂试验和现场工业试验。
The results show that the performance of super-light white LED is rather stable in thermal vacuum test, and can be used in space illumination field.
通过对试验结果的分析，证明超亮白光led在热真空环境中工作性能稳定，同时给出了合理的使用方法，为超亮白光led在航天照明领域的应用奠定了基础。
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