Definition

1. Noun:
   • Specific Gravity: The ratio of the density of a substance to the density of a reference substance (usually water for solids and liquids, air for gases) at a specified temperature and pressure. It is a dimensionless number.
   • Proportion / Share / Weight: The relative size, importance, or contribution of a particular part within a larger whole, often expressed as a percentage or ratio.

Usage Examples

• Noun (Specific Gravity):
  • Tỷ trọng của chì rất cao. (The specific gravity of lead is very high.)
  • Chúng tôi đo tỷ trọng của mẫu đá. (We measured the specific gravity of the rock sample.)
• Noun (Proportion):
  • Tỷ trọng lao động nông nghiệp đang giảm dần. (The proportion of agricultural labor is gradually decreasing.)
  • Công ty này chiếm tỷ trọng lớn trên thị trường. (This company holds a large market share.)

Advanced Usage

• Economic/Statistical Context: Frequently used in economics, business, and sociology to describe the composition of a total.
  • Tỷ trọng đóng góp của khu vực tư nhân vào GDP. (The private sector's contribution share to GDP.)
• Investment Context: Refers to the allocation or weighting of an asset within a portfolio.
  • Nhà đầu tư điều chỉnh tỷ trọng cổ phiếu trong danh mục. (The investor adjusted the stock weighting in the portfolio.)

Variants and Related Words

• Tỷ lệ (n): Ratio, rate, percentage. Often used more broadly than .
  • Tỷ lệ thất nghiệp. (The unemployment rate.)
• Mật độ (n): Density (mass per unit volume). This is the physical property, while (specific gravity) is a comparative ratio.
  • Mật độ dân số. (Population density.)

Synonyms

• For "Specific Gravity": Relative density.
• For "Proportion": Share, percentage, ratio, weight, component.

Related Terms and Phrases

• Tỷ trọng riêng: This is a direct synonym for "specific gravity" in the physical science sense.
• Cơ cấu tỷ trọng: Proportional structure; refers to the breakdown of shares within a system.
  • Cơ cấu tỷ trọng các ngành kinh tế. (The proportional structure of economic sectors.)

noun

1. density
2. proportion