【单选题】粘土斜墙顶部厚度不宜小于3m,底部厚度不宜小于水头的( )
【单选题】The _____ is designed to draw cooling air through radiator core.
【判断题】A water-cooling system consists of the engine water jacket, thermostat, water pump, radiator, radiator cap, fan, fan drive belt and necessary hoses.
【单选题】可作用于下丘脑体温调节中枢引起发热的细胞因子是
【简答题】The basic components of a cooling system are radiator, radiator cooling fans, pressure cap and reserve tank, water pump, and thermostat.
【单选题】Fill the radiator__________coolant and attach a radiator cap tester
【单选题】To avoid the danger of ______, do not remove the reservoir cap while the engine and radiator are still hot.
【单选题】The radiator cap is designed to seal ______ so that it operates under some pressure.
A.
the lubricating system
【简答题】机床主变速传动系设计时,为了避免扩大传动误差,以减少振动噪声,一般限制直齿圆柱齿轮的最大升速比不大于( )。