casing tester
常見例句
- The present invention provides a fixed focus handy ovulation tester, the said ovulation tester comprising an inner casing (1), having a top and a bottom end;
本發(fā)明提供一種手持式固定焦距排卵測試儀，該排卵測試儀包含具有 頂耑和底耑的內(nèi)套（1）；
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