在运料车上测试沥青混合料的温度时,温度计插入深度不小于200mm,注视温度变化直至不再继续上升为止,读记温度,准确至1℃.
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In order to improve the working conditions of the crosshead bearings, the bearing pressure is made and the peripheral speed is made in later designs()
A. smaller, higher
B. higher, smaller
C. smaller, smaller
D. higher, higher
事故照明的颜色是()。
A. 黄
B. 绿
C. 红
D. 白