Your question does not make even the slightest bit of sense.
In a double measure because of it's low alcohol quantity
Basically, a double martini is two martini cocktails served in one glass. To mix one, you use twice as much gin and twice as much vermouth, then strain it into a larger martini glass. They are not recommended, as the drink will be warm before you've finished it (unless you're drinking way too fast). It is generally better to order a martini, drink it and order another than to order a double martini.
its by cc martini
Double Dutch by CC martini
Cinzano is typically used as a single measure in cocktails, such as in classic recipes like the Martini or Negroni. Adjust the amount based on personal preference and the specific cocktail recipe you are making.
double
double
There is no particular name for it... its just the measure that you repeat from the starting at the first double bar line (the first double bar is on the left side of the measure, the second on the right.)
90 degrees
just double answer of the with
A double tube manometer measure pressure. Manometers use liquid in a column and balance it against the pressure that they are measuring.
The standard pub measure of spirits is 25ml. A double is 50ml.