bulk density 基本释义：
bulk density 指的是材料在单位体积下的质量。换句话说，它表示材料在特定容器中的密度。例如，木材的bulk density可以用来衡量其是否易于压缩或膨胀。
发音：/b?lk/ ?de?s??ns/
英语范文：
I like to keep a variety of plants in my garden, but I always find it difficult to know how much soil I need to plant them in. Bulk density is a key factor to consider when choosing the right soil for my plants. If the soil is too dense, it may be difficult for roots to penetrate and the plants may struggle to grow. On the other hand, if the soil is too loose, it may not provide enough support for the plants and they may topple over. Therefore, selecting a soil with a suitable bulk density is essential for successful plant growth.
音标和基础释义：
Bulk density 是一个物理学概念，表示材料在特定体积下的质量。在种植植物时，我们需要考虑土壤的bulk density。如果土壤的bulk density过高，根系可能难以穿透土壤，植物可能难以生长。另一方面，如果土壤的bulk density过低，土壤可能无法为植物提供足够的支撑，植物可能会倒下。因此，选择具有适当bulk density的土壤对于植物的生长至关重要。
Bulk Density
Bulk density is a term used in the field of materials science to describe the density of a material when it is in bulk, or in its natural state without being compressed. It is a measure of the amount of material per unit volume and is commonly used to evaluate the quality of materials such as sand, gravel, and soil.
Bulk density can be important in various contexts, such as in the construction industry where it is used to determine the amount of material needed for a given project and in environmental science where it is used to assess the potential environmental impact of a material.
In this context, bulk density can be seen as a measure of the compactness or tightness of a material. A material with a high bulk density may be harder or more difficult to work with, while a material with a low bulk density may be more prone to settling or becoming airborne.
To illustrate this concept, consider the case of a sandy beach. The sand in this environment has a relatively low bulk density because it is loose and easily moves. However, when it is compacted for construction purposes, it becomes much harder and has a higher bulk density.
In conclusion, bulk density is an important concept in materials science that can have a significant impact on various fields, including construction and environmental science. Understanding its implications and how it can be used to evaluate materials can be beneficial in various contexts.
bulk density
Bulk density refers to the density of a material when it is in bulk form, rather than in a dense packing. It is commonly used to measure the amount of material in a given volume. The bulk density of a material varies depending on its composition and its state of aggregation.
For example, the bulk density of sand varies depending on whether it is dry or wet, and whether it is in a fine or coarse grain size. Similarly, the bulk density of a concrete mixture varies depending on the proportion of cement, sand, and gravel used.
In engineering and construction, bulk density is an important parameter that affects the amount of material used and the resulting weight of a structure. It also affects the transportation and handling costs of materials, as well as the durability and strength of the final product.
Sample Text (500 words or less)
"Bulk density is a key parameter in engineering and construction that determines the amount of material used in a given volume. It is important to understand the composition and state of aggregation of a material to accurately measure its bulk density. For example, the bulk density of sand varies depending on its moisture content and grain size, while concrete mixtures have different bulk densities depending on the proportion of cement, sand, and gravel used. Understanding bulk density allows engineers and designers to optimize the amount of material used in a structure, while also ensuring its durability and strength. In transportation and handling, bulk density also affects the cost of transporting and handling materials, as well as their environmental impact."
