?伸缩桅
... telescope callipers 光学测微仪 telescope mast 伸缩桅 telescope pipe 伸缩套管 ...
?可伸缩桅
... 可倒桅||collapsible mast 可伸缩桅||telescope mast 前桅||fore mast ...
?伸缩式钻塔
伸缩式钻塔 telescope mast; telescopic derrick; telescoping derrick 竖式钻塔 derrick .
Next week, they will order the spacecraft to unfold the telescope's 33-foot-long camera mast and test its array of 133 mirrors, then begin actual operations 23 days later.
WSJ: NASA NuStar Telescope to Hunt for Black Holes
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