The design achievements has little effect to guide and discipline the construction . after studying the reasonable division of the labor between person , drawing flatbed and application program , the author developed " the intersection application system " with the using of visual c + + , autocad and objectarx , which is also based on the traditional theory of the vertical intersection design 作者充分研究了平面交叉口设计中人、图形平台及辅助设计系统的合理分工，并基于传统的立面设计理论和方法，以visualc + +为编程工具， autocad为图形平台，使用objectarx二次开发工具，编制了本平交口辅助设计系统。
Though the water levels cross one section are almost equal , the velocities differ greatly . at the some cross - section , the velocity in the in the quirk may be double as that on the floodplain . the water surface will rise hi the southern branch because of the improper diffluence ratio , if using the designed diffluence col 淮河入海水道河口段水位值横向分布相差无几，而流速的横向变化较大，泓滩平均流速差最大可达一倍以上，在现有的分流口设计条件下，若按设计的南北汊分流比，南分流口有壅水现象发生，如果南汊分流增大到800m ~ 3 / s左右时，则水流较为通畅。
Abstract : this paper has deduced a new method for risering ， ? parametric method . it has proved with the test curve of the british castin g p ractice commission . practical results have well perfected furt her the perimetrischen quotlent method for risering . a conclusion is drawn that rise r supplement shrink efficiency is directly proportion to the ratio of casting to riser perimetrischen quotient 文摘:提出的冒口设计新方法?参数法，与英国铸造实践委员会给出的实验曲线相互印证其实用性，进一步完善了冒口设计的周界商法；得出了冒口补缩效率与铸件和冒口的周界商比值成正比的结论。
Simultaneously , the following five techniques for the hardware design are discussed : the usage of psd in the hardware system , multi - sci ( serial communication interfaces ) design technique in single chip processor system , the cpu task estimation , ports allocation for core processor devices , and the choice of components in hardware design 对psd ( programmablesystemdevice )在控制器设计中的应用技术、单片机多串行口设计技术、硬件设计中的cpu任务量估计、 cpu内核端口配置和元器件选用等问题进行了研究。
