By using decomposition of exponential operators, the normal and antinormal ordering product of Boson exponential operators for SU(1,1) Lie algebra are given.
通过指数算符的分解，给出了SU（1，1）李代数玻色指数算符的正规和反正规乘积。
The longest one was maybe three weeks, which is about normal for most optometrists, so in general ordering online was faster than higher cost traditional options.
最久的一副三周后到达，与从大多数验光师那里拿到眼镜的时间相当。因此，总体上说，网上订购比高成本的传统方式更为快捷。
The brand suggests ordering one size up from your normal size.
品牌建议从你的一个正常大小大小排序。
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