derrick member
常见例句
- Derrick guy wire as the special supporting member of downhole derricks, its performance has much impact on the mechanical behavior of derricks.
绷绳作为作业井架的特殊支承构件，其工作特性对作业井架的力学行为有较大影响。 - This program was pioneered by a CSDA contractor-member, Don Moroz of Derrick Concrete Cutting and Construction Ltd. , In Edmonton, Alberta, Canada.
这个纲领，是国内首创的美洲可持续承办人、顿河莫罗兹混凝土切割井架和建设有限公司，埃德蒙顿加拿大艾伯塔省。 返回 derrick member