Definition
to increase the size or thickness of something by adding additional material
增加份量；加厚
To reduce costs, the company decided to bulk out the packaging of its products.
為了降低成本，公司決定增加產品的包裝厚度。
She bulks out the soup by adding potatoes and carrots to increase its volume.
她通過添加土豆和胡蘿蔔來增加湯的份量。
They bulk out the product using inexpensive materials to make it thicker.
他們使用便宜的材料來增加產品的厚度。