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1."It's not possible to rejoin the previous lab": A limitation in returning to a previous state within a laboratory setting. It implies that once you have progressed beyond a certain point in a lab activity, you cannot go back to where you were before.
2."Better whenever you start the lab don't open other windows until the lab completes":
A suggestion for conducting laboratory work. It advises against opening additional windows or distractions during the lab session. The implication is that focusing solely on the lab task at hand without diverting attention elsewhere will lead to better outcomes or efficiency.
NOTE: Maintaining focused attention during laboratory work is crucial for ensuring accuracy, safety, and efficiency, minimizing disruptions to achieve reliable results.
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