Marble is a metamorphic rock that forms when existing rocks, such as limestone or dolomite, undergo intense heat and pressure deep within the Earth's crust. This process transforms the original rock into a denser, more compact material. The primary component of marble is calcium carbonate, which makes up over 50% of its composition. Other elements include magnesium carbonate, calcium oxide, manganese oxide, and silicon dioxide, contributing to its unique properties and appearance.
Marble possesses several notable characteristics and advantages:
1. It is highly resistant to deformation, with a high hardness that makes it durable and able to withstand heavy use.
2. Marble is wear-resistant, capable of withstanding high temperatures without degradation, and requires minimal maintenance over time.
3. It has excellent physical stability, with a fine-grained structure that prevents chipping or surface damage from impacts. Its surface remains smooth, and its flatness and precision are not easily affected. Additionally, marble is non-magnetic, rust-resistant, and has good insulating properties.
Marble can be classified into four main categories based on quality and processing standards:
Class A marble is considered the highest quality, featuring uniform color, excellent craftsmanship, and no visible impurities or pores.
Class B marble is similar in appearance but may have minor imperfections that require slight repairs such as cutting, bonding, or filling.
Class C marble contains more noticeable flaws, such as uneven texture, pores, or irregularities. These issues may require more extensive repair methods like separation, gluing, or reinforcement.
Class D marble is the most variable, often containing natural imperfections and requiring multiple surface treatments to achieve a consistent finish.
In addition to these classifications, marbles are also categorized by their origin, color, and pattern, making each piece unique and suitable for different applications, from architecture to sculpture.
2D/3D Laser Distance Sensors 2D laser distance sensors are mainly used for planar measurements, commonly found in robot navigation and indoor mapping. In contrast, 3D laser distance sensors can perform spatial measurements, widely applied in 3D modeling and environmental perception for autonomous vehicles. By acquiring spatial position and shape data of objects, 3D laser distance sensors support positioning and navigation in complex environments. In summary, different types of laser distance sensors have distinct advantages in performance and application. Users can select the appropriate product based on specific needs to achieve the best measurement results and application value.
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