该哈密顿量所对应的光前形式下的介子本征方程是在螺旋度-动量表象下表述的，不便于得到介子总角动量信息。

The front form meson eigen equations are formulated in momentum-helicity representation which hinders its solution in total angular momentum representation.

youdao

这场酷暑是2016上半年升温趋势的部分表象，期间气温与工业化前水平相比平均上升1.5摄氏度。

It's part of a trend that's seen temperatures for the first six months of 2016 rise by an average of 1.5 degrees Celsius compared to pre-industrial levels.

youdao