The diagram below shows the stages in making a storage area from concrete canvas.
Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
Write at least 150 words.
（特别说明：上图第4步的Unflolding更正为Unfolding)
My model answer (176 words)
The process diagram illustrates the stages involved in constructing a storage area using concrete canvas.
Overall, there are eight stages in the manufacture of a storage area. The process begins with the production of a mattress-like raw material and ends with the use of the finished storage structure.
At the initial stage, four layers—comprising a fibrous top surface, a dry concrete mix, a 3D fibre matrix and a PVC backing—are adhered together to form a mattress-like sheet. While the top surface is designed to be hydrated, the bottom layer consists of waterproof PVC to prevent leakage. Once produced, the material is transported by truck to the site where it is unwrapped.
The installation begins with the material being unfolded and secured to the ground using pegs, after which air is pumped into it. The surface of the structure is then hydrated with water, followed by a setting period lasting between 20 and 24 hours, allowing the concrete to harden and form a solid structure. Finally, the concrete canvas is ready to be utilised for storage purposes.
🍓 Language Toolkit for Process Diagrams
(📦 Concrete Canvas Installation 核心表达)
1️⃣ 核心动词与短语 (Core Verbs & Actions)
adhered together – 粘合在一起
form a mattress-like sheet – 形成床垫状的板材
designed to be hydrated – 设计为待水化的（待洒水的）
prevent leakage – 防止渗漏
transported by truck – 由货车运输
unfolded and secured – 展开并固定
pumped into it – 泵入内部
thoroughly hydrated – 充分水化
allowing the concrete to harden – 使混凝土硬化
form a solid structure – 形成坚固的结构
ready to be utilised – 准备好被使用
2️⃣ 话题相关名词 (Topic-Specific Nouns)
manufacture of a storage area – 储存区域的制造
fibrous top surface – 纤维顶层
dry concrete mix – 干混凝土混合物
3D fibre matrix – 3D 纤维矩阵
waterproof PVC backing – 防水 PVC 底层
finished storage structure – 成型的储存结构
installation – 安装 / 铺设
setting period – 静置期 / 硬化期
storage purposes – 储存用途
3️⃣ 高阶句型拆解
分词结构作定语 (Present Participle as Modifier)
At the initial stage, four layers—comprising a fibrous top surface, a dry concrete mix, a 3D fibre matrix and a PVC backing—are adhered together to form a mattress-like sheet.
中文释义：在初始阶段，四个层——包含纤维顶层、干混凝土混合物、3D 纤维矩阵和 PVC 底层——被粘合在一起，形成一个床垫状的板材。
过去分词结构（时间状语从句的省略）Past participle clause (reduced adverbial clause)
Once produced, the material is transported by truck to the site where it is unwrapped.
中文释义：一旦生产出来，材料就会由货车运送到拆封地点。
说明：Once produced 是时间状语从句 Once the material is produced 的简化形式。当从句主语与主句主语相同时，可以省略主语和 be 动词，只保留过去分词。
定语从句 (Relative Clause)
The installation begins with the material being unfolded and secured to the ground using pegs, after which air is pumped into it.
中文释义：安装开始于将材料展开并用地桩固定在地面上，在那之后，空气被泵入其中。
分词结构作结果状语 (Participle for Result)
The surface of the structure is then hydrated with water, followed by a setting period lasting between 20 and 24 hours, allowing the concrete to harden and form a solid structure.
中文释义：随后用水湿润结构表面，接着是持续 20 到 24 小时的静置期，从而使混凝土硬化并形成坚固的结构。
