base layer

基本解釋

As the electric crawler inches forward along a sand base layer, the bricks are automatically packed together by gravity.
隨著這個(gè)電動(dòng)鋪路者在砂基路麪上一點(diǎn)點(diǎn)曏前行進(jìn)，甎塊便因爲(wèi)地心引力自動(dòng)碼放在一起。
Often, you will only need this in the coldest weather, when the fleece adds extra insulation between your base layer and your outer layer.
通常你衹在最冷的日子才需要穿上這一層衣物，羊毛會(huì)在你的內(nèi)衣和外套之間建立一個(gè)額外的隔絕層。
Leaving it out can cause problems such as being unable to pan at all or having additional layers badly misaligned on top of the base layer.
如果不指定，可能會(huì)出問(wèn)題，比如根本不能平移或是有額外的層在基層上不能很好地對(duì)齊。

The base layer of modern skis is made from a substance called ultra-high-molecular-weight polyethylene.
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Dual-shot adds a second layer of colored, transparent or translucent polycarbonate on top of a base layer to produce secondary color blends and depth effects.
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a piece of clothing worn under your other clothes, made of material that is designed to keep you warm and dry