名词
中文翻译：热传递单元的数量
同义词：
['数量，数目，单位数例句：1. The number of students in the class is increasing rapidly.（班上的学生人数正在迅速增加。）2. The company has a large number of employees.（该公司拥有大量员工。）']
例句：
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1. The number of students in the class is increasing rapidly.
班上的学生人数正在迅速增加。
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2. The company has a large number of employees.
该公司拥有大量员工。
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3. The number of cars on the road is decreasing due to traffic congestion.
由于交通拥堵，道路上的汽车数量正在减少。