9分雅思图表写作范文全集之流程图 水泥生产

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9分雅思范文之流程图 水泥制造The diagrams below show the stages and equipment used in the

cement-making process, and how cement is used to produce concrete for building

purposes.

范文集结：全部15篇9分雅思流程图范文汇总放送

范文：

The diagrams illustrate the phases and apparatus to make cement and how

cement is utilised in the production of concrete for construction.

The production of cement involves a 5 stage, linear process that begins with

the mixing of raw materials and culminates in the packaging of new cement.

Making concrete is a simpler process that involves mixing four ingredients in a

concrete mixer.

Limestone and clay are crushed and the resulting powder is then mixed before

being passed through a rotating heater. Once heated this mixture travels over a

conveyor belt and is ground through a grinder. Now that the cement has been

produced, it is packaged and transported to a building site where it can be used

to make concrete.

Concrete is made up of half gravel, quarter sand, 10% water and 15% cement.

All of these are added together in a cylindrical drum and rotated until concrete

is yielded.

(151 words)