半日主力资金加仓公用事业、通信股，抛售电子股

Used to list several examples and indicate the list is not complete. 等 means "etc." and commonly follows several nouns before a shared category noun such as 板块、货币、公司. This is very common in news and formal writing.

This structure narrows the discussion from a general topic to a more specific level. 具体到 means "when it comes specifically to..." and 来看 adds the sense of "judging from this perspective". It is common in analysis and reporting.

This pattern places something within a scope, range, or context. It often means "in," "among," or "within" a certain category, ranking, event, or situation.

This formal pattern means "to use ... as ..." or "to take ... as ...". It is often used in academic, statistical, and journalistic Chinese to state a standard, method, or basis for evaluation.

位居 and 位列 are formal verbs used in news writing to express ranking or position. They mean "to rank" or "to be placed at" and are often followed by numbers or titles such as 第六、首位、前列.