A gasoline burner hung from the center of the ceiling of each classroom, the students put the desks in two big circles, Shiquan and Yimin sat beside each other.
特别是夜自修,每班课堂中央挂一盏汽油灯,学生把课桌围成两大圈,石泉和伊敏并排坐在一起。
It requires that a test specimen be installed in a horizontal (ceiling) position and then be exposed to a gas burner flame.
这种方法要求被测试样安置在地面或者天花板上,然后面向燃气火焰。
It requires that a test specimen be installed in a horizontal (ceiling) position and then be exposed to a gas burner flame.
当样品被加热的时候,用一台氧气分析仪测量样品的热释率。
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