柯林斯英汉双解大词典
subgrade /ˈsʌbˌɡreɪd/
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1.
N the ground beneath a roadway or pavement 路基
双语例句
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Without a strong and stable subgrade there is no stable pavement.
没有坚固、稳定的路基就没有稳固的路面。
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Commercial golf courses utilize a subgrade of combined layers of gravel and sand.
商业高尔夫球场，利用一对组合层路基碎石和沙子。
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The strength and stability of subgrade is the basic conditions to ensure the stability of road.
路基的强度和稳定性是保证路面稳定的基本条件。
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