2015.08.28 Opening reinforcement (2 wealth points for a reply; +3–8 additional wealth points if the answer is correct)

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This post was last edited by FORREST_GUMP on 2015-9-2 at 21:57. The Mechanical Forum has introduced the \"Question of the Day\" feature, which not only helps to foster an active atmosphere for technical discussions and guide the direction of such exchanges but also provides users with financial rewards, enabling them to experience various cool features. Multiple-choice question: When a oblong or elliptical hole is made in a convex head, the size of the hole to be used in the reinforcement calculations should be determined based on the （B） of the oblong or elliptical hole. A. Short axis B. Long axis C. Either one is fine. Please note: We will close this thread after 24 hours, and at that time we will announce the best reply (the most helpful response), along with the answer and explanation. Charisma Reward: If you post a topic in this section within two days to provide a detailed explanation or discussion of the knowledge points related to this question, please reply/comments in this post to let us know, and we will have a moderator award you charisma points. It is not allowed to simply copy and paste; original content is preferred, with at least some organization by the user along with personal insights. After registration, we will rank participants based on the content of their posts: the last-place participant will receive +1 charm, the second-to-last +2 charm, and so on, with the highest score earning +5 charm. http://bbs.hcbbs.com/thread-1381938-1-1.html Earning wealth by inviting friends http://bbs.hcbbs.com/thread-1389240-1-1.html [Mechanical Section] Collection of essential knowledge 【Seeking manufacturer sponsorship】 (long-term campaign)