此书对营养学有很大贡献。This book makes a significant contribution to dietetics.人们普遍认为他是营养学方面的著名权威.He was widely regarded as a leading authority on nutrition.我们需要振兴人类营养学研究.We need to revitalize human nutritional research....
现在网上主要销售一台M763十九辊薄板矫平机.Internet sales now primarily a M 763 19 plate hand - roll machine.WC43系列矫平机是多根上辊整体升降式的辊式矫平机.WC 43 series leveler is integral lifting roller leveler with many top rolls.附录部分简单介绍了基于PLC的液压矫平机控制系统的软件实现...