两岸: bilateral, both shores, both sides, both coasts, Taiwan and mainland...
胡子: beard, mustache or whiskers, facial hair, (coll.) bandit...
提炼: to extract (ore, minerals etc), to refine, to purify, to process...
误差: difference, error, inaccuracy...
茶叶: tea, tea leaves...
路上: on the road, on a journey, road surface...
身边: at one's side, on hand...
勋章: medal, decoration...
不由自主: can't help; involuntarily (idiom)...