如何解决进口仪器中备用电池的问题。
How to resolve the trouble of back battery in import instrument.
实际测试结果表明，仪器性能与国外进口仪器相当。
The test results show that the performance of the instrument is comparable with imported foreign instrument.
为了确保球墨铸铁产品质量，研制了球化率测定仪，以替代进口仪器。
To ensure the quality of nodular cast iron, an instrument for determining the spheroidized rate of castings was developed instead of the instrument imported.
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