Conclusions Duodenogastric reflux (DGR) is the common pathologic phenomenon in biliary tract diseases.
结论D GR是胆道疾患的多见病理现象。
To obtain objective evidences for DGR, the monitoring duration may be decided on the basis of obvious symptoms.
为获得DGR的客观证据，可在患者自述症状较重时检测数小时。
The DGR-5A robot designed by us is an articulated one with five revolute joints driven by electricalservomotors.
DGR-5A 机器人是我们自行设计的五自由度全关节型电动机器人。
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