The IF function is one of the most popular and useful functions in Excel. You use the IF function to ask Excel to test a condition and to return one value if the condition is met, and another value if the condition is not met.
1. 'sink'. If something sinks, it moves slowly downwards. Sink is especially used to say that something moves downwards below the surface of water. The boat was sinking. To sink a ship means to cause it to sink. The Confederates managed to sink one ship and damage another. 2. 'sank' and 'sunk'.
Sink marks are unintended depressions on the surface of a part that do not mimic the mold steel surface. They are considered a cosmetic defect. Sink marks generally result from an inability to pack out a location within the part and can result from poor process or poor part design (a part having thin and thick regions where the melt must flow from the restrictive thin regions to the thicker region).