At least every hour.
Most often any line should be wound clockwise as that is the way parts will screw together.
Drain line cleaning should be performed at least once a year to maintain optimal functionality.
You can, but should you? Better ask the airline they have their own rules.
A lower case c with a horizontal line above it means "with". This character might be seen as instructions for medication "should be taken "with" food"
In refrigerated display cases, the load line is that level above which food should not be stacked because it will be held outside the proper temperature zone.
nutritious is delicious
A bread line is people waiting in line for food.
The unemployed faced extreme hardships during the Depression . They often stood in line for hours to receive food. Many of them were homeless.
Sewer line cleaning should be performed every 1-2 years to maintain optimal functionality and prevent potential blockages.
you wash it on delicates in your washer under cold water then line dry it
More often than not it will be caused by gum disease and should be seen by a dentist.