main material

基本解释

The physiocrats, too, stressed material goods, and agriculture was the main material product.
重农主义者也强调了物质商品，而农业是当时主要的物质产出。
Using water as the main material, the concept creates a literal waterfall from the top of the tower.
他们的创意是以水为主要材料，设计了一个从大厦顶端倾泻而下的巨型瀑布。
In the engineering construction in traditional technology of clay brick wall is one of main material form, and, to some extent, waste of land resources.
在工程建筑的传统工艺中粘土砖是墙体构成的主要材料之一，在一定程度上浪费了土地资源。

Iron ore, the main raw material of steel, changed the lakes area and the nation.
The connective tissue is one of those four main types of tissue, they're supporting material - supporting tissues that surround other cells in the body and give the cell - and give the body much of its mechanical property.
结缔组织是四种主要组织类型中的一种,它们是支持物--是,包围在体内其它细胞周围的支持组织,并赋予身体大部分的机械性能
耶鲁公开课 - 生物医学工程探索课程节选
For Dow Chemical,the main focus will be producing material from algae that can be used to make plastics.

Plant oils consist of fatty acids combined with glycerol—and these fatty acids (for example, those from palm oil) are the main raw material for the biodiesel already sold today.
ECONOMIST: Advanced biofuels