While Gelidium seaweeds can be collected by gathering fragments washed ashore, mass production of agar requires steady, large quantities.10 Harvesters in New Zealand during WWII had to “walk beside a boat, waist to armpit deep in water and feel for the weed with their feet.” Handling large volumes of wet seaweed (which yields less than five percent agar) was challenging. Then as now, when Gelidium is harvested by scuba divers from rocky seabeds, collectors have to understand the life cycle of the algae, find the most likely locations for its growth, and prevent overharvesting to safeguard future yields.
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。关于这个话题，新收录的资料提供了深入分析
"summary": "A blog with ActivityPub support",。新收录的资料是该领域的重要参考
措辭力度升級。「堅持貫徹……總體方略」改為「深入貫徹……總體方略」，以「深入」取代「堅持」，強調落實深度。
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