搜索结果: 1-2 共查到“ebb-and-flow”相关记录2条 . 查询时间(0.054 秒)
Ebb and Flow: Tides and Life on Our Once and Future Planet
Once and Future Planet Tides and Life
2015/7/20
Ebb and Flow: Tides and Life on Our Once and Future Planet is well titled. It tells the story of tides, why they matter, what causes them, and how they have changed over time. The author, Tom Koppel, ...
Development of a Low-cost, Labor-saving and Mass Production Nursery System of Cabbage Plug Seedlings by Ebb and Flow Irrigation
Production Nursery System Cabbage Seedlings
2009/7/14
For the purpose of low-cost and labor-saving in the uniform production of cabbage plug seedling on a large scale, an ebb and flow (E & F) irrigation system was developed. Uniform cabbage plug seedling...