cement concrete
常见例句
- C, calcium carbonate decomposes to give lime or calcium oxide plus carbon dioxide And, this is used as the first step for making cement concrete.
石灰石是碳酸钙,在900度的时候,Limestone,is,calcium,carbonate,,and,at,about,900∞,碳酸钙分解产生石灰,以及二氧化碳,这是制备,水泥混凝土的第一步。 - And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.
当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。 - And as part of the effort to involve the local people in rebuilding, women’s self help groups are producing bricks, roofing tiles, and cement concrete hollow blocks to modern specifications.
作为当地人口参与重建工作的一部分,妇女自助小组参与了砖、瓦、以及现代水泥混凝土空心砖的制作。 - The National Ready Mixed Concrete Association points out that using ash in cement is not a new idea.
- And so, when you think about how much cement concrete are consumed annually on the planet, this becomes a considerable point source of greenhouse gas emissions.
当你想到,在地球上每年要消耗多少的水泥混凝土的时候,这将是温室气体排放的,一个主要来源。
麻省理工公开课 - 固态化学导论课程节选 - Portland cement is a material that holds together the sand and crushed stone in concrete.
- In the harshly worded order, the judges said that failure to punish such dishonest acts would destroy the moral fibre of society, a national asset of greater importance than cement and concrete.
ECONOMIST: Citizen power in India - Bridges and roads have quite strong federal controls on the use of cement and making concrete.
FORBES: The Fracking Solution Is A Good Cement Job - Yet noble intentions do not, of themselves, move concrete, even rotting concrete like the cement-and-pine-cone slurry used to make the Elwha Dam, the first of the two structures to be built.
ECONOMIST: Water in the West (2) 返回 cement concrete