I am on the school team of ping pang at college.
我上大学时是校乒乓球队的成员。
He was among the first American businessmen who came to China right after the Ping Pang Diplomacy in the mid-70s.
他是七十年代中期乒乓外交后首批来中国的美国商人之一。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法，采用乒乓式变电桥测量法，实现了接地电阻的准确在线测量。
The insulation methods of several DC systems are compared and analysed. A ping-pang variable bridge measurement is adopted. The ex - act on line detection of grounding resistance is realized.
比较分析了几种直流系统常用的绝缘检测方法，采用乒乓式变电桥测量法，实现了接地电阻的准确在线测量。
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