Definition

1. Noun:
   • Specific gravity: A physics and chemistry term referring to the ratio of the density of a substance to the density of a standard reference substance (typically water for liquids and solids, air for gases).
   • Proportion / share: The relative size, percentage, or importance of a component within a larger whole, especially in economic or statistical contexts.

Usage Examples

• Noun (Specific Gravity):

  • Tỉ trọng của chì cao hơn nước rất nhiều. (The specific gravity of lead is much higher than that of water.)
  • Nhôm có tỉ trọng thấp. (Aluminum has a low specific gravity.)

• Noun (Proportion/Share):

  • Tỉ trọng dịch vụ trong nền kinh tế ngày càng tăng. (The share of services in the economy is increasing.)
  • Chúng ta cần phân tích tỉ trọng của từng nhóm sản phẩm. (We need to analyze the proportion of each product group.)

Advanced Usage

• "Tỉ trọng xuất khẩu": export proportion / export share.

  • Tỉ trọng xuất khẩu công nghệ cao đang được cải thiện. (The proportion of high-tech exports is being improved.)

• "Phép đo tỉ trọng": densimetry; the measurement of specific gravity.

  • Phép đo tỉ trọng giúp xác định độ tinh khiết của chất lỏng. (Densimetry helps determine the purity of a liquid.)

Variants and Related Words

• Mật độ (n): density. (Often related but not synonymous; density is mass per unit volume, while specific gravity is a dimensionless ratio.)
• Tỷ lệ (n): ratio, rate. (A more general term for any ratio, not specifically tied to density.)
• Trọng lượng riêng (n): specific weight. (A related engineering term meaning weight per unit volume.)

Synonyms

• Specific gravity: relative density.
• Proportion: percentage, share, ratio.

Related Terms

• Khối lượng riêng (n): density (mass density). This is the direct measurement (e.g., kg/m³) that is used to calculate specific gravity.
• Tỉ trọng kế (n): hydrometer; an instrument for measuring specific gravity.