论文部分内容阅读
中巴合资生产ERJ145系列飞机
【出 处】
:
航空制造技术
【发表日期】
:
2003年3期
其他文献
Closed-form solutions were developed to optimize kinematics design of a 2-degree-of-freedom (2-DOF) planar parallel manipulator. The optimum design based on the
在新课程标准下,对小学英语的教学要求及目标提出了更高的要求,激发学生学习兴趣,使学生在轻松愉快的氛围下学习,将学习任务转化为学生乐于做的事,成为教师的主要工作,符合新
1000个网站热追团购网站模式,肯定是不止的,有很多小创业者觉得这个模式容易做,他一想,好像我们本地没有团购网,于是某省某市装修团购网、汽车团购网、建材团购网就纷纷上线
引起牛腹泻性病毒病的病原主要有牛冠状病毒(Bovine coronavirus,BCV),牛轮状病毒(Bovine rotavirus,BRV),牛病毒性腹泻病毒(Bovine viral diarrhea virus,BVDV).该病在临床
截至1999年底,H股及红筹股在香港的市值已占香港股市市值的22.7%。鉴于中国正踏入其经济改革的一个最关健阶段,重建公众及投资者对中资企业及金融体系的信心,在现階段可谓十
The radioactivity level of the ambient environment of Anren Bonc-coalPower Station (BCPS) was investigated systematically. The γ radiation dose ratelevel in th
,Ion irradiation-induced structure damage to botanic samples using the ion transmission energy spect
In order to study the mechanism of irradiation-induced damage ofbotanic samples caused by low energy heavy ions, transmission energy spectrum mea-surement was p
Murong Feng,a 31-year-old activist from Hebei Province in northern China,had attended several training workshops for non-govemmental organi- zations (NGOs) rela