Cost-efficiency Analysis on the Hybrid of Missile and Artillery Air Defence Disposition--《Fire Control & Command Control》2005年S1期
Cost-efficiency Analysis on the Hybrid of Missile and Artillery Air Defence Disposition
YAO Guang-lun,WANG Yu-sheng,YANG Da-wei,MIAO De-cheng(Zheng zhou Air-defense Forces Academy,Zhengzhou 450052,China)
In the future air defense warfare,how to get the largest efficiency using the least money is a question that is very important to improving the battle effectiveness of the air defense forces and consummating the theory of the hybrid of missile and artillery.In this paper an cost-efficency analyzing index system according to the hybrid of missile and artillery air defence disposition is established.A method of using cost-efficiency to evaluate the air defence disaposition is discussed.An evaluation model is given out.A practical sample shows the method is feasible.
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网易公司版权所有(C)杭州乐读科技有限公司运营：在PLC编程中，WORD和INT、DW和DI有什么区别，求详解数据类型？感觉有点模糊_百度知道
在PLC编程中，WORD和INT、DW和DI有什么区别，求详解数据类型？感觉有点模糊
我有更好的答案
WORD和INT都是指16位数据，WORD一般是侧重于数据储存区的长度，且只有16位的长度，INT主要侧重于指整数数据类型。在PLC里都是指16位数据的类型，但是在C语言里INT可以是32位。DW是双字存储地址长度的描述，可存储32位数据，就是两个WORD的数据存储区长度。DI是双字输入信号缓存区的地址定义，和DW不一样的地方的是DW定义的是程序内存缓存区数据长度，属于PLC内部公共存储区，而DI是特指输入端子的信号缓存区，属于局部特定功能的存储区。
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双字（DW），双整数（DI）都是32位，字（W）和整数（I）都是16位；字不带符号位，整数是有符号的
一个word是16位的，DW就是双字，就是32位的，Word和DWord里头放的数据一般是随意的；而INT和DINT，虽然也分别是16位和32位，但是，它只能存放整形数据，就是整数啦，不知道这么说楼主能否明白。
1、存储空间都是一样的2、在300中区别开来了，在300中word double word 更长用来给十六进制数据int di 都是十进制数本质是一样的
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