telescopic mast
常见例句
- These provide the condition of further modification and practicality of the telescopic mast.
这些为今后套筒式伸展臂的发展和实际应用奠定了理论基础。 - The telescopic supporting column 1 comprises: a mast 6 that is made telescopic by inserting two or more tubular columns sequentially in a nested manner;
该伸 缩式支柱1包括：桅杆6，所述桅杆6通过使两根或更多管柱以嵌套方 式顺序地进行插嵌而制成伸缩式；
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