| 单词 | 热膨胀 |
| 释义 | 〔perlite〕A natural volcanic glass similar to obsidian but having distinctive concentric cracks and a relatively high water content. In a fluffy heat-expanded form perlite is used as a lightweight aggregate, in fire-resistant insulation, and in soil for potted plants.珍珠岩：一种天然火山玻璃岩，类似于黑曜岩，但它有清晰的同轴裂纹和相对高的含水量。轻的热膨胀形珍珠岩可用作轻型建材，也可用于绝热材料和盆栽植物的土壤中〔expand〕Air expands when heated. This critic's influence is expanding.空气受热膨胀；批评的影响正在扩大〔vermiculite〕Any of a group of micaceous hydrated silicate minerals related to the chlorites and used in heat-expanded form as insulation and as a planting medium.蛭石：与绿混石有关的一组含云母的水合硅酸盐矿物质的统称，并以热膨胀形式用作绝缘材料和种植媒介〔dilatometer〕An instrument used to measure thermal expansion and dilation in solids and liquids.膨胀计：用于测量固体液体中热膨胀与扩张的仪器 |
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