Specialist technical documentation on concrete and soil compaction, laying of paving stones and interlockingblock 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。
2
The practice proves the interlockingblock 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。
3
An Area Control Computer Interlocking System (AC-CIS) im pl ements integrated control over station interlocking, section block, and dispatching and command.