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.
繃繩作爲作業井架的特殊支承搆件，其工作特性對作業井架的力學行爲有較大影響。 - This program was pioneered by a CSDA contractor-member, Don Moroz of Derrick Concrete Cutting and Construction Ltd. , In Edmonton, Alberta, Canada.
這個綱領，是國內首創的美洲可持續承辦人、頓河莫羅玆混凝土切割井架和建設有限公司，埃德矇頓加拿大艾伯塔省。 返回 derrick member