Bronchitis. Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic.
What does Centrebore mean? The âcenterboreâ of an alloy wheel is the size of the hole at the back of the wheel which the âhubâ fits into. To help the wheels to seat properly this hole needs to be an exact match to the size of the hub.
The 60 is the aspect ratio of the tire. That means that the sidewall (the part of the tire that extends from the car's wheel to the edge of the tread) is 60% of the width of the tire's tread.In our example case, then, the sidewall measures 12.3 cm from the wheel to the tread, measured radially.inally, the 15 means that the tire will fit on a 15-inch wheel. This means that the diameter of the wheel is 15 inches. I don't know who came up with this strange mix of metric, English and ratio measurements, but it's been this way for many years. Hope that helps.