计划应该包含一个时间表；一个安排好顺序去完成的列表；每个工作的负责人；所需资源的列表，包括材料；设备和基金。
It should include a time-frame; an ordered list of tasks to complete; persons responsible for each task; a list of resources required including materials; facilities and funds.
如果怀疑空气中缺氧或缺氧可能发生，使用氧检测设备来测试缺氧空气。可以回顾一下合适的材料安全数据表(MSDS)。
If oxygen-deficient atmospheres are suspected or can occur, use oxygen monitoring equipment to test for oxygen-deficient atmospheres. Review the appropriate Material Safety Data Sheet (MSDS).
如果怀疑空气中缺氧或缺氧可能发生，使用氧检测设备来测试缺氧空气。可以参考合适的材料安全数据表(MSDS)。
If oxygen-deficient atmospheres are suspected or can occur, use oxygen monitoring equipment to test for oxygen-deficient atmospheres. Review the liquid nitrogen Material Safety Data Sheet (MSDS).
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