重庆市林业局副局长马良清同志在第二次全国油桐学术研讨会上的讲话（根据录音整理）各位专家、同志不辞千里来到重庆传经送宝，我代表重庆市林业局对各位专家的到来表示最热情的欢迎！云阳县委、县府对这次会议很重视、很关心、很支持，我代表重庆市林业局表示衷心的感谢... Speech by Comrade Ma Liangqing, Deputy Director of Chongqing Forestry Bureau, at the Second National Tong Tung Symposium (According to the Recordings) All the experts and comrades come to Chongqing Municipality to deliver treasures without interruption, and on behalf of the Chongqing Municipal Forestry Bureau, Arrival said the most warm welcome! Yunyang County Committee, the county government attaches great importance to this meeting, very concerned about, very supportive, on behalf of the Chongqing Forestry Bureau, I express my heartfelt thanks ...