Achieve real time control to hole train and collect or transmit sets of message from train communication network, has become the trend of the train network control technology.
利用列车通讯网络实现整车的实时控制以及各类信息的收集与传递，已经成为今后列车网络控制技术的发展趋势。
The technology may control the direction of trajectory of a hole to make it to fit the different requirement of underground engineering projects.
该技术经人为控制钻孔轨迹的走向，使钻孔符合地下工程不同的要求。
According to the features of the hole pouring pile construction technology, this paper analyzes the key points of quality control of pore-forming and pile-forming in the construction.
根据钻孔灌注桩施工工艺特点，详细分析和论述了施工中成孔和成桩质量控制要点。
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