水分保持剂 Humectants ; humectant metaphosphate ; Water retention agent ; Moisture agent
水分保持 retention of water ; [土壤] water conservation ; Water holding
土壤水分保持 soil water retention
水分保持特性的测定 Determination of the water-retention characteristic
土壤水分保持力 soil water retention ; retencja wody w glebie
土壤水分保持功能 holding water capacity
保持肌肤水分 keeps skin hydrated
保持头发水分 keep hair hydrated
食品用水分保持剂 Food and water conservation agent
喝水可以帮助你保持水分，控制卡路里，过滤肾脏，保持皮肤健康。
Drinking water can help keep you hydrated, control calories, filter your kidneys, and keep healthy skin.
更少的植被意味着土壤也无法保持水分；下雨时土壤就失去了保持水分的能力。
Less vegetation means the soil can't hold water as well; the soil loses its ability to retain water when it does rain.
树木还能保持水分防止土壤侵蚀。
And they protect against soil erosion by holding moisture in the ground.
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