One who or that which regulates or restrains. 调解人；调节器 Courtesy is a moderator of conduct. 礼节可以约制行为。 A presiding officer, as at a town meeting, debate, or the like. 会长；主席。 Presiding official of the Presbyterian Church. 长老教会会议主席。 Substance, such as graphite, used for slowing down neutrons in a reactor. 【理】减速剂(用来减缓核子反应炉中，中子的反应的物质，如石墨)。 |