rili

basic english sentence patterns

Python入门书籍，最新版，简单易学。 Make Your Own Python Text Adventure_ A Guide to Learning Programming(Phillip Johnson (auth.) - Make Your Own Python Text Adventure_ A Guide to Learning Programming-Apress (2018))

永磁同步电动机调速系统由pmsm月吸逆变器、永磁同步电动机和机械负载三部分组成,每个部分都具有非线性特性和参数的不确定性。因为PWM逆变器死区的存在,在低速以及调制频率很高时,死区特性将会导致逆变器输出电压包含很大的谐波分量,使得电机转矩发生很大的 脉动,甚至导致系统的不稳定。有些学者采用变结构控制降低死区的影响,由于变结构控制本身具有抖振现象,这使得所设计的控制器在到达滑模平面之前很容易激起系统的未建模动态,导致系统无法克服逆变器死区的影响。 (A PMSM drive sysetm Consisst of ade-ac inverter,PMSM and sorne meehan iealload.All hteree eom Ponenst of hte syset maerhca racterizedb ymodel swhich aernon linear and eonati nullkllown Parameetrs. )

IT3100 HARDWARE MANUAL

个人学习C++经验，与大家分享，有错误之处还请大家指正，大家共同学习。(C++ personal learning experience to share with you, there is an error also please correct me, we learn together.)

里面为微机原理老师的全部课件，好不容易搞过来的。(Inside the principle teacher for all computer software, from engaging in the hard-won.)

超声变幅杆原理和设计,详细介绍了超声变幅杆的原理及设计，pdf电子书籍(the pricinple and design of the ultrasonic horn)

一本R语言函数详细解释大全，详细的介绍了大部分R语言所用到的函数(A detailed explanation of the R language function Guinness, a detailed description of the language used by the majority of R function)

超声法检测混凝土缺陷技术规程，属于行业资料．工程检测资料(Ultrasonic Detection of defects in concrete technology in order and the information belongs to the industry. Project Detection information)

该书是一本通信对抗专业的实用参考书。系统地介绍了现代抗干扰通信技术(主要是直接序列扩谱和跳频扩谱)和抗干扰通信的检测技术，讨论了每一种基本抗干扰信号类型的干扰技术，包括干扰直接序列扩谱信号、干扰快跳频扩谱信号、干扰慢跳频扩谱信号和干扰直接序列扩谱/跳频扩谱混合信号。该书的读者对象是电子战和通信对抗领域的工程师和科技工作者，也可供通信领域的科技工作者参考。(Content HighlightsAnti-Jam Communications and Electronic Countermeasures. Radio Frequency Propagation. Signaling for AJ Communications. Jamming Techniques. Anti-Jam Signal Detection. Jamming Direct Sequence Spread Spectrum Systems. Jamming Fast Frequency Hopping Systems. Jamming Slow Frequency Hopping Systems. Jamming Hybrid Spread Spectrum Systems.)