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1·The dust collecting device comprises a communicating pipe, a holding casing body, and a buffering device;

集尘装置包含连通管、容纳壳体以及缓冲装置。

2·The guiding hydraulic cylinder is connected with the main hydraulic cylinder by the communicating pipe. One end of the guide plunger is sheathed in the guide hydraulic cylinder.

导向液压缸与主液压缸之间由连通管连通，导向柱塞的一端套装在导向液压缸内。

3·The purification filter element unit is communicated with a communicating pipe through a delivery pipe, and the communicating pipe is communicated with the cleaning solvent box.

净化滤芯单元通过 分液管与连通管连通，连通管与清洁溶剂箱连通。

4·Descriptors might represent a connection to a device, pipe, or a socket for communicating with another process or to a normal file.

描述符可以表示到设备、管道或套接字的连接，这些连接用于与另一个进程或普通文件进行通信。