英语词汇lower layer是什么意思，lower layer的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典

单词	lower layer
释义	DEFINITIVE EXAMPLES 权威例句〔baseburner〕A coal stove with a hopper that automatically replenishes itself from above as lower layers of fuel are consumed.底燃火炉，自动填煤火炉：一种带有漏斗的煤炉，当下层燃料燃尽时，它会自动地从上面补充美国传统〔sima〕The lower layer of the earth's outer crust that underlies the sial and is rich in silica, iron, and magnesium.硅镁层：地球外壳的较低层，在硅铅层之下，富含硅、铁和镁美国传统
随便看	up to the mark up to the mark up to the minute up to the minute up to the minute up to the minute up to the nines up to the nines up to the notch up to the present up to the present up to the present up to the present day up to the present day up to the requirements up to the requirements up to the standard up to the standard up to their necks up to then up to then up to this time up to time up to your neck up top

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