To achieve rapid moisture detection of culture media, dielectric type EC-5 soil moisture sensor was used to make adaptive test with substrate in different proportions.

为实现栽培基质水分快速检测，在不同配比的基质中采用电介质型EC - 5土壤水分传感器进行了适应性测试。

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Based on the data analysis and comparisons of pre-questionnaire, post-questionnaire and pre-test, post-test between EC and CC, the research questions was solved by evidence.

根据两个班前后调查问卷以及测试的数据分析及对比，之前的研究问题都得到了解决。

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The trouble with the test is that even if the criteria are tough, EC governments will, when the time comes, have some discretion in deciding whose currency is to join the ecu.

ECONOMIST: From the archive