What do a carnivorous sponge, a lobular yam and a flat-faced psychedelic frogfish all have in common?
肉食性海绵、小叶山药和平脸的迷幻璧鱼，这三者有什么共同点么？
2
Kinematic analysis is carried out for the first time on constant-breadth arc CAM mechanisms with oscillating flat-faced follower by the method of replacing higher pair by lower pairs.
采用高副低代的方法，首次对平底摆动从动件等宽圆弧凸轮机构进行运动分析。
3
I could spend evening after evening cooped up in my flat, and I was often faced with weekends that offered little or nothing in the way of company.