dây dọi

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The Vietnamese word "dây dọi" refers to a "plumb line," which is a tool used in construction and carpentry to find a vertical reference line. It consists of a weight (often a small piece of metal) attached to a string or cord. When the weight hangs freely, it points straight down, helping builders ensure that structures are level and upright.

Usage Instructions:

• Basic Usage: You can use "dây dọi" when discussing construction or when talking about how to check if something is vertical.
• Context: It is often used by carpenters, architects, or anyone involved in building.

Examples:

1. Basic Example: "Khi xây nhà, thợ xây thường dùng dây dọi để kiểm tra độ thẳng đứng của cột." (When building a house, builders often use a plumb line to check the verticality of the columns.)
2. Advanced Example: "Sử dụng dây dọi là một kỹ thuật cổ điển nhưng rất hiệu quả trong việc đảm bảo tính chính xác của công trình." (Using a plumb line is a classic technique but very effective in ensuring the accuracy of the construction.)

Word Variants:

• There are no direct variants of "dây dọi," but it can be related to other construction tools and concepts such as "thước" (ruler) or "máy cân bằng" (leveling tool).

Different Meanings:

• In a broader sense, "dây dọi" can also refer metaphorically to a standard or reference point in other fields, such as in education or quality control.

Synonyms:

• Thước dây: This translates to "measuring tape," which is a different tool but sometimes related in the context of measuring and leveling.
• Cây thước: This means "ruler" and can be used in a similar context, although it does not serve the same purpose as a plumb line.

Academic

1. Plumb-line