您要查找的是不是：
- Yitang Jiuzi 易堂九子
- The new desert ameliorant , successfully trial - produced by Jiangxi Yitang industry Co. 江西伊塘实业公司试制成功新型沙漠改良剂，并获得国家专利。
- Astragalus hoangtchy technique Niu Yitang 芪术牛已汤
- Keywords Yitang Mine;self burn;failure;ponderation; 义棠煤矿;自燃;事故;思考;
- the Prose Anthologies of Yitang Shisanzi 易堂十三子文选
- Flood Routing Through Yitang Link - Reservoir and Some Other Problems 益塘连通水库的调洪演算
- nine writers in Yitang 易堂九子
- Yang Yitang 杨一堂
