英语词汇“gravel board”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	gravel board
释义	gravel board gravel board, gravel plank A board attached near the lower edge of a wood fencing so that the fencing does not touch the ground; prevents the lower end of the fencing from rotting.
随便看	sulfonium ion sulfonium salts sulfonium ylide sulfonmethane sulfonyl sulfonyl chloride sulfonyl halide sulfonyloxaziridine enolate oxidation sulfonyloxy sulfonylurea sulfonylurea compounds sulfonylurea receptor sulfonylurea receptor 1 sulfonylurea receptor 2 sulfonylureas sulfophile element sulfoprotein sulforaphane sulforhodamine b sulfosalicylic acid sulfosalicylic acid test sulfosalicylic acid turbidity test sulfosalt sulfosalt minerals sulfosol

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gravel board