A-type truss of steel tube concrete or A-type truss of steel tube is used broadly in large-scaleswitch station and transformer substation in our country.
型钢管混凝土构架或A型钢管构架在我国的大型开关站、变电站中有着极其广泛的应用。
2
The structure and function of a large-scaleswitch matrix which based on I2C bus are introduced, and its test circuit structure and control circuit structure are given.
介绍了一种基于I2C总线的大型开关矩阵结构及其功能，给出了其测试电路结构组成及控制电路组成。
3
A switch to forest gardening and other forms of permaculture is trickier, especially for producing grain; but such is the scale of the creeping emergency that we can't afford to rule anything out.