The new method is used to test the repellent effect of a few kinds of anti-mite fabric, and the results are compared with that by the conventional method. 新方法對每一個(gè)樣品進(jìn)行獨立培養，每個(gè)培養皿都蓋上皿蓋，消除了試驗樣品與對照樣品的相互干擾。
Based on the test result of final reduction gear, the causes of failure were brought out by physics-chemical analysis and metallographic analysis on the parts tested. 摘要根據某廠(chǎng)生產(chǎn)的主減速器總成試驗結果，通過(guò)對失效樣品進(jìn)行理化和金相組織分析，找出了試驗樣品的失效原因。
They built a rough model out of sticks and wire. 他們用木條和金屬絲做了個(gè)粗制的模型。
