What does two dashes after a number mean?

What does two dashes after a number mean?

Explanation: An apostrophe sign can be used in: angles - then it means ' - angular minutes, '' - angular seconds. Example: 75o20'39'' which stands for: 75 degrees, 20 minutes and 39 seconds.

Are two dashes inches or centimeters?

The international standard symbol for inch is in (see ISO 31-1, Annex A) but traditionally the inch is denoted by a double prime, which is often approximated by double quotes, and the foot by a prime, which is often approximated by anapostrophe.

What does two dashes mean in measurement?

The double quote symbol in the US means inches, at least contextually for length measurements. Thus you have 75 inches. The single quote refers to feet. Thus 6′ 3″ means six feet, and three inches which is also 75 inches.

How do inches work?

Each inch is divided into 16 lines, meaning that the space between each line is 1/16 inch long—this is the smallest length you can measure with a ruler. (Note that some rulers only go down to 1/8 inch lines, whereas others go down to 1/32 inch lines.)

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Walk on time is typically 2 hours. Drying is dependent upon the absorbency of the subfloor, ambient temperature and humidity. The floor levelling compound must be left uncovered for a minimum of 24 hours before applying a floorcovering when applied at 2–5mm. Above this thickness, leave for 48 hours before covering.

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This nontoxic formula applies white and dries clear in just 35 minutes, compared to an hour or longer for traditional white craft glues. Use it on a variety of surfaces, trusting in the superior quality and performance delivered in every adhesive from the Aleene's Tacky Glue line.