sphere of circulation的意思|示意
美 / sfiə ɔv ˌsə:kjuˈleiʃən /
英 / sfɪr ʌv ˌsɚkjəˈleʃən /
[财]流通范围
sphere of circulation相关例句
The paper has introduced constructional properties, applicable sphere of pumping reverse circulation drilling, and its technical demands and the reasons of common hitchs and processing methods.
介绍了泵吸反循环钻进的施工特点、适用范围、施工中的技术要求与常见故障的原因及处理方法。