rotary interlocking block 旋转式联锁闭塞机
concrete interlocking block 混凝土联锁块
precast concrete interlocking block 预制混凝土联锁块
Concrete interlocking block pavement 联锁块路面
interlocking concrete block revetment 连结式混凝土板护坡
unit-block type relay interlocking 组合式电气集中联锁
block signal interlocking 与闭塞结合的联锁
block interlocking slide 闭塞机锁条
unit block interlocking 组匣式联锁
The practice proves the interlocking block harbor yard has already been the first choice of the newly-built harbor yards due to its remarkable economic benefit.
实践证明联锁块堆场由于其经济性显著，已成为港口新建堆场的首选方案。
Specialist technical documentation on concrete and soil compaction, laying of paving stones and interlocking block paving, service manuals and videos, etc.
提供有关混凝土路面压实设备和块石碎石路面压实设备的专家级技术资料，用户服务手册和录像资料，等等。
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