参考范文
The diagram demonstrates the process of producing ethanol, a type of biofuel.
The process begins with plants and trees growing by absorbing energy from sunlight and carbon dioxide. Once mature, they are harvested using machinery like tractors. After harvesting, the plants undergo pre-processing, during which they are broken down into smaller pieces, such as cellulose.
Next, the pre-processed materials are sent for further processing in a facility. During processing, sugars are extracted from the cellulose. Then, microbes are added to the sugars. Through a fermentation- like process, the sugars are converted into ethanol with the help of microbes.
Finally, the produced ethanol is used as a fuel for various vehicles, including cars, trucks, and airplanes. Meanwhile, during the entire process, carbon dioxide is released at different stages, such as during plant growth, pre - processing, and when ethanol is used as fuel.
Overall, the diagram clearly shows a cyclic process of ethanol production from plant growth to its utilization as a biofuel.
译文
该图展示了乙醇（一种生物燃料）的生产过程。
这个过程始于植物和树木通过吸收阳光和二氧化碳中的能量进行生长。一旦成熟，它们会使用拖拉机等机械进行收割。收割后，植物会进行预处理，在此过程中，它们会被分解成更小的部分，如纤维素。
接下来，预处理后的材料被送往工厂进行进一步加工。在加工过程中，从纤维素中提取糖类。然后，向糖类中添加微生物。通过类似发酵的过程，在微生物的帮助下，糖类被转化为乙醇。
最后，生产出的乙醇被用作各种车辆（包括汽车、卡车和飞机）的燃料。同时，在整个过程中，二氧化碳会在不同阶段释放，例如植物生长阶段、预处理阶段以及乙醇作为燃料使用时。
总体而言，该图清晰地展示了从植物生长到作为生物燃料利用的乙醇循环生产过程。
流程图核心词汇
1. demonstrate/ˈdemənstreɪt/ 展示，演示
2. biofuel/ˈbaɪəʊfjuːəl/ 生物燃料
3. absorb/əbˈzɔːb/ 吸收
4. carbon dioxide二氧化碳
5. harvest/ˈhɑːvɪst/ 收割，收获
6. machinery/məˈʃiːnəri/ 机械，机器
7. pre - process/ˌpriː ˈprəʊses/ 预处理
8. cellulose/ˈseljʊləʊs/ 纤维素
9. extract/ɪkˈstrækt/ 提取
10. microbe/ˈmaɪkrəʊb/ 微生物
11. fermentation/ˌfɜːmenˈteɪʃn/ 发酵
12. utilization/ˌjuːtɪlaɪˈzeɪʃn/ 利用
流程图常用句型总结
1. The process begins with [step 1], where [description of step 1].
用于引出流程的第一步并描述。
例如：The process begins with raw material collection, where the necessary materials are gathered from different sources.
2. After [previous step], [material/product] is [action] to [next step/state].
描述前一步骤之后，材料或产品的状态变化或下一步操作。
如：
After pre - treatment, the materials are processed to extract useful components.
3. [Action] is carried out on [material/product] with the help of [tool/agent].
说明在某种工具或媒介的帮助下对材料或产品进行的操作。
比如：Fermentation is carried out on the sugars with the help of microbes.
4. Once [condition is met], [next action] takes place.
表示一旦满足某个条件，下一步操作就会进行。
例如：Once the ethanol is produced, it is stored in special containers.
5. Finally, [final product] is used for [purpose], marking the completion of the process.
描述最终产品的用途，标志着流程的完成。
例如：Finally, the purified water is used for industrial purposes, marking the completion of the water - treatment process.
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