Brilliant shafts radiated from the convexity of the arch, coming and going silently.

光柱从拱门凸起处放射出来， 声来去去去。

There are terms like convexity and duration and there are mathematical symbols, but people don't really use those very much on a day-to-day basis.

其中有凸度、持续时间等术语以数学符号，但人们在日常生活中并不经常使用它们。

He regarded the delicate lines of her profile, and the small, tight, applelike convexities of her bodice, so different from Arabella's amplitudes.

他注视着她轮廓精致线条，以她紧身胸衣小巧、紧实、苹果般凸起，与阿拉贝拉振幅截然不同。