Advantages of large group的用法和样例：
- She went to the street with a large group of children at her tail.
- The hoisting, luffing and slewing mechanisms can be operated individually or jointly with the advantages of large radius and high speed.
- A large group of protesters have turned out.
- The optical analysis method of gas concentration has advantages of large measurement range,high precision,untouched on-line measurement and so on.
- The advantages of organic materials over inorganic materials are high fluorescent efficiency, wide selection of colors and the easiness in the fabrication of large films.