Stir the custard occasionally to prevent a skin forming.

要不时地搅拌牛奶蛋糊，防止其表面结皮。

柯林斯例句

Pls seal up after use it to avoid freezing.

乳胶使用后应密封存放,防止乳胶表面结皮造成浪费.

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The milk has skinned over.

牛奶结皮了.

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A few finish is placed on a glass surface light observation after placing 24 h pre - infarction crust.

将少量上光油置于玻璃片表面,在蔽光处放置24h后观察有无结皮现象.

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Soil microbiotic crust is developed broadly and has an ecological significance in arid and semiarid regions.

土壤微生物结皮广泛存在于干旱半干旱地区,且具有重要的生态学意义.

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The key technque of crust fixation sand by desert alga was been further discussed.

提出了藻沙粒结皮是荒漠藻结皮的早期形式.

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On the dry environment area, bryophytes have become the main soil crust plants.

在这样的干燥地区, 苔藓植物已经成为主要的土壤结皮植被类群.

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