two-stage double-acting compressor cylinders
... two-span double-layer lattice vault 两跨双层柱面网壳 two-stage double-acting compressor cylinders 两级双作用压气机气缸 two-way double-triode clamp circuit 双三极管双极性箝位电路 ..
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two-stage double-acting compressor cylinders
两级双作用压缩机气缸
以上为机器翻译结果，长、整句建议使用 人工翻译 。