... 按钮表示 button indication 半自动闭塞机 semi-automatic block machine 半自动闭塞联系电路 liaison circuit with semi-automatic blocks ...
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In particular, our research and development of semi-automatic and fully automatic hollow block making machine production line design, reliable and easy to use, highly favored by customers...
特别是我公司研制、开发的半自动、全自动空芯砌块成型机生产线，设计新颖、性能可靠、操作方便，深得用户青睐。
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