The Effect of Technical Barriers to Trade on China's Agricultural Products Export 并列题名：The Effect of Technical Barriers to Trade on China's Agricultural Products Export Research on the effect of technical barriers to trade on China's high-tech products export 并列题名：Research on the effect of technical barriers to trade on China's high-tech products export Impact of technical barriers to trade on China's foreign trade and countermeasures Directed technical change of China's agriculture product safety