main flow的用法和樣例：
例句
- The main girders support I-section transverse ribs.
主梁支承著工字梁的橫向肋。 - They tried to streamline the main panel of TV.
他們儘力簡化了電視機的主板。 - These two points are the essence of the matter, the main current.
這兩點是事物的本質和主流。 - Rationalism is the main trend of traditional Western philosophy.
摘要理性主義是西方哲學的主流。
