Buried tidal marsh or coastal forest soils point to sudden land subsidence of about 1 meter occurring at the same time from Vancouver Island to Northern California.
埋在地下的潮汐沼泽及沿海森林土壤使温哥华至加利福尼亚州北部一带的地面沉降1米左右。
2
One of the big advantages of their technology, Minesto executives say, is its small size — 12 meters for the wingspan and one meter for the turbine — relative to other tidal-energy designs.