“三角学”的拼音？

“三角学”的英语可以翻译为：trigonometry ...

他的三角学分数很低.He received a low mark for trigonometry.该山的高度已用三角学测得.The height of the mountain has been determined by trigonometry.恒河三角学洲的地下淤积物中含有砷.The underground sediment of the Ganges Delta contains arsenic....