C8-T3-T1流程图
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.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
