1 | Such new arms are rifled. | |
2 | "In the sixteenth century," remarked Bossuet, "they used to rifle cannon." | |
3 | Ask Ss to look at the screen and answer questions using the Indirect Speech. | |
4 | After that the method and structure of manually dividing rifling is brought forward, also dividing way of CNC is put forwa... | |
5 | Rifled or other pipe wall corrugation may change the flow from a hetero- generous to a homogeneous regime by introducing a secondary circulation. |