时间：20xx年7月20日至21日

• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

　　参加人员：

• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

• Keep it short and easy to remember.
• Use keywords related to your blog's topic.
• Avoid using hyphens or numbers.
• Make sure it's available (you can use a domain registrar's search tool to check).

　　进度方面：按照施工进度计划，实际进度相对滞后。原因分析：①人工挖孔桩技术难度较大；②六、七份雨水天气较多；③脚手架钢管租赁困难，未能及时投入使用，从而影响了工程进度。