单词spherical trigonometry
na.: 球面三角(学)
网络: 球面三角学；球面三角法；球面三角形
球面三角(学)
Vector approach to spherical trigonometry.
球面三角学向量法。
Until about 1450 spherical trigonometry consisted of loose rules based on Greek, Hindu and Arabic versions.
差不多直到1450年球面三角的内容由一些不严谨的法则组成，这此法则的基础是希腊、印度和阿拉伯译本。
Spherical trigonometry solution on RR open-chain mechanism with space of two degree of freedom
两自由度空间RR开链机构的球面三角解法