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Single acting, single rod, spring return.
单作用，单杆，弹簧复位。
youdao
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This paper described research work on heat treatment technology on spring rod.
文章介绍了对弹条热处理工艺进行的试验研究工作。
youdao
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This paper described research work on heat treatment technology on spring rod.
文章介绍了对弹条热处理工艺进行的试验研究工作。
youdao