join的做法更像是对数据流模型进行合并，所以可能有缺乏同步的现象出现，不过如果modeler有意按join多次执行流程片段，那就另当别论了。
The join behaves more like a merge on data flow models, so a lack of synchronization can occur, unless the modeler intended multiple execution of the process fragment following the join.
在同步数字网络中，同步是数据流正确传输的基础，因此同步技术是数字传输领域的关键技术。
Synchronization is the base of transferring data correctly in synchronous digital network, so synchronization technique is the key in the data transferring field.
针对系统中的高精度定时计数、多通道同步和实时数据流盘等问题，提出了相应的实现方法。
Aiming at the difficulty of the system such as: high-precision timing and count, multi-channels synchronization, real-time data flow disci brought forward an according resolvement.
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