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车轮横向概率分布图
LED灯引脚分布图
There are 27 user-controllable LEDs on the DE2-70 board. Eighteen red LEDs are situated above the 18 toggle switches, and eight green LEDs are found above the pushbutton switches (the 9th green LED is in the middle of the 7-segment displays). Each LED is driven directly by a pin on the Cyclone II FPGA; driving its associated pin to a high logic level turns the LED on, and driving the pin low t
三肋箱拱桥荷载横向分布浅析
三肋箱拱桥荷载横向分布浅析——箱肋拱桥是工程设计中较常用的一种桥型，对于三肋拱箱，各箱如何计算受力，困扰着许多设计人员。结合涂乍大桥的设计，对三肋拱箱主拱圈的荷载横向分配进行了分析。
