For a system, Hamiltonian is invariant under any translation of spatial coordinates.对于一体系, 哈密算符在任何空间坐标变换下是不变的.A multi - distorted invariant orthogonal moments, Jacobi - Fourier moments ( JFM ), were proposed.提出一种多畸变不变的正交...
杰克趁机跳上豆茎,急匆匆地向下滑去.Jack had just time to get on the beanstalk and hasten down it.他登上豆茎,飞快地往下溜.He stepped on to the beanstalk and climbed down as fast as he could.但是他最终还是被巨人发现了.杰克赶忙爬下豆茎,巨人在后面穷追不舍.Jack climbed up the beanst...
Mechanical Jacks System : Four - beamtwo - pillar frame, main cylinder, pneumatic components, two - way and straight - line guider, hydraulic - driving system - feeding systematic.液气传动部: 四梁二柱拉杆式封闭框架机体结构 、 油缸 、 气动元件 、 双向 ...
The BBC has just successfully demonstrated a new digital radio transmission system.英国广播公司刚刚成功地演示了一套新的数字无线电传输系统。Filmmaking was transformed by digital editing, digital f/x, and digicams.数字剪辑、数码特效以及数码摄像机改变了电影摄制方式。Manufactur...
The three members are Euro union, Thailand and Djibouti.这三个成员分别是欧盟 、 泰国和吉布提.Taiwan only scored higher than countries such as Thailand, Japan, and Macau.仅胜泰 、 日与澳门等而已.He eventually constructed a business empire which ran ...
She began to think he was in mental derangement.她开始想这个人一定是精神错乱了。MRI is an ideal method to diagnose internal derangement of TMJ.结论:mri是诊断关节内紊乱症理想的方法.Most people take it as a sign of derangement.但大部分民众则将此番言论看作痴人说梦....