按流量购买的梯子

Former website of Dr. Diane M. Barrett, UC Davis Emeritus, now retired.  For publications and resources from Dr. Barrett, please see her Emeritus page here:  http://foodscience.ucdavis.edu/people/diane-barrett 

For the current Cooperative Extension (CE) Specialist in Small Scale Fruit and Vegetable Processing, please see Dr. Selina Wang's page here:  http://www.selinawang.com/