加工循环 meaning in English

machining cycle

Many machining operations require coolant for lubrication and cooling purposes . coolant can be turned on and off form within the machine cycle
很多加工操作需要冷却液，用于润滑和冷却，冷却液的开和关可在加工循环中进行。
In preface , the author iilustrates some reasons why he studies the industrialization of gansu . chapter 1 , the author sums up the industrialization history and its characteristics . in chapter 2 , this paper makes a economic self - examinations of gansu industrialization , then poses a choice of new conception industrialization of unbalanced city - village network , propelled by market - machining circulation
第二章，从经济学角度反思甘肃工业化，总结出区域工业化的一般规律性启示，并在总结甘肃工业化比较优势的基础上，提出以点的聚集为根本，以轴的辐射为依托，通过非均衡、点轴渐进和双层网络、市场? ?加工循环推动，实现面的拓展的工业化发展思路。