“锯齿形”造句
" 我想回廓上还有
锯齿形 的栏杆吧?
" I suppose it had jigsaw work on the porch banisters? "
我们来研究图9中一组相似三角形的
锯齿形模型.
Let's consider the sawtooth pattern of similar triangles in Fig . 9.
槽刀采用
锯齿形设计刀片, 省力耐用.
The blade of groove is designed with sawtooth, saving effort and durable.