单词:erosion shields for blade
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今天我们要学的词是 erosion。 Erosion 的意思是侵蚀、腐蚀。A new high-speed rail station linking Hong Kong and mainland China opened under Beijing authority, raising new worries among Hong Kong residents of a further erosion of the
Bladeless Wind Generator Safe for Birds Wind turbines are tall structures with large blades used to produce electricity. They are useful sources of low-cost, renewable energy. But they can also be deadly to birds and bats. The turbines large blades t
By Gilbert da Costa Abuja 31 October 2009 Massive environmental degradation has been the subject of heightened concern across southeast Nigeria as the region continues to be plagued by an erosion crisis that has grown worse over the years. Driving a
Bird-friendly Bladeless Wind Turbine Mimics Nature Energy created by conventional three-blade wind turbines is cheap, sustainable and pollution-free. But according to current estimates, the devices' fast-moving blades kill up to 300,000 birds annuall
HARI SREENIVASAN: And to the analysis of Shields and Gerson. That's syndicated columnist Mark Shields and Washington Post columnist Michael Gerson. David Brooks is away today. So, let's start talking first, on the politics side, elections, May 20, bi
US Scientists working on new ways to battle the erosion that threatens Louisiana's coastline have a dramatic new tool: a massive replica of the lower Mississippi River. The multi-million US dollar model, complete with flowing water, aims to isolate t