## 一、词汇释义

“Solid fuel”一词源自英语,直译为“固体燃料”。它指的是那些在常温下呈固态的燃料,如煤、木头、生物质燃料、蜡烛、火柴等。这些燃料在燃烧时能够释放出能量,用于供热、发电或其他动力需求。固态燃料的特点是易于储存和运输,但燃烧效率和环保性能通常不如液态或气态燃料。

## 二、用法例句

1. "The steam locomotive was powered by solid fuels, primarily coal, in the early 20th century."(20世纪初,蒸汽机车主要由固体燃料——煤炭驱动。)

   

2. "In rural areas, wood is still a common solid fuel for cooking and heating."(在农村地区,木头仍然是常见的烹饪和取暖固体燃料。)

3. "Modern rockets often use solid fuel boosters to provide initial thrust."(现代火箭通常使用固体燃料助推器提供初始推力。)

4. "Alternative solid fuels like biomass pellets are being developed as a renewable energy source."(人们正在开发生物质颗粒等替代固体燃料作为可再生能源。)

5. "The candle is a simple form of solid fuel, converting its chemical energy into light and heat."(蜡烛是一种简单的固体燃料,将其化学能转化为光和热。)

## 三、同义词辨析

1. **Fuel**:这是一个广义词,可以涵盖所有形态的燃料,包括固态、液态和气态。例如,“Diesel and gasoline are liquid fuels, while coal and wood are solid fuels.”(柴油和汽油是液体燃料,而煤和木头是固体燃料。)

2. **Combustible**:这个词强调的是燃料的可燃性,不特指形态。例如,“Combustible materials like paper and cloth can be used as fuel, but they are not as efficient as solid fuels.”(纸张和布料等可燃材料可以作为燃料,但它们的效率不及固体燃料。)

3. **Carbonaceous**:这个形容词专门用来描述含碳的燃料,特别是指那些来源于生物的固态燃料,如木材、煤炭等。例如,“Carbonaceous solid fuels, when burned, release carbon dioxide into the atmosphere.”(含碳的固体燃料燃烧时会向大气排放二氧化碳。)

4. **Solid combustibles**:这个短语与"solid fuel"含义相同,但更正式,常见于科技文献中。例如,“The study focuses on the combustion characteristics of various solid combustibles, including peat and lignite.”(这项研究关注各种固体可燃物的燃烧特性,包括泥炭和褐煤。)