论文中出现的 cf. i.e. s.t. e.g. w.r.t. et al. etc等英文缩写是什么意思

cf. 参考
例句：The prefix B denotes that the corresponding quantity is expressed in the frame B (cf., Fig. 2)

i.e. 即
例句：Inherently, the vision-only problem has six DoFs that are unobservable and need to be held fixed during optimization, i.e. the absolute pose.

s.t. 服从，满足 ，受约束于
subject to的缩写，通常出现在数学方程式和数学公式中，比如：

参数x满足约束g(x)=0的所有值中，使得f(x)的值最大。

e.g. 例如
源自拉丁文exempli gratia
例句：This is in contrast to, e.g., Sibley et al.

w.r.t. 相对于
例句：Twb = (Rwb, Wp) is the pose of the body frame b w.r.t. the world frame w.

et al. 等人
通常在引用参考文献中出现，3个作者及以上用
例句：Approaches to keep the problem tractable for online estimation can be separated into three groups (Nerurkar et al., 2013).

etc 以及诸如此类; 以及其他; 等等
例句：To this class of substance belong mica, porcelain, quartz, glass, wood, etc.

参考链接：论文缩写