spring pole drilling 手工冲唤钻眼
spring pole rig 弹簧钻杆机
air spring pole 气弹簧撑杆
pole spring 杆簧
pole spring cap 杆簧盖
main pole coil spring [电] 主极线圈弹簧
pole support spring 拖杆减振弹簧
He would sail to New Zealand, then reach Antarctica in February, during the southern summer, and then proceed to the pole the following spring.
他将航行到新西兰，然后在2月，也就是南方的夏季到达南极洲，然后在第二年的春天前往极地。
Play in the spring, flying over the green field, on the surface, some play tired poles that swallows stood on a few mark pole.
在春天中玩耍，飞过青绿的田野，在水面盘旋，一些玩倦的燕子则站在电线杆那几痕电线杆上。
D is CAM wheel pole driving, spring automatic restore structure, tight structure, reasonable design, stable driving, dust discharge and dependable air lock.
D为凸轮连杆传动，弹簧自动复位机构，结构紧凑、设计合理、运转平稳，卸灰、锁气可靠。
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