The back layer is more complicated. The main points to notice are.

后面的图层就比较复杂了。

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The requirements for silica sol and refractory powder for mold shell in face layer differ from that in back layer.

硅溶胶型壳的面层和背层对硅溶胶和耐火粉料的要求是不一样的。

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The phase transition temperatures of films at different layers are different, gradually decreasing from the back layer to the surface layer.

同时又测量了同一薄膜内不同层上钛酸铅的相变温度，结果是从衬底向薄膜表面方向，相变温度逐渐降低。

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The Maya poured the chocolate drink back and forth between two containers so that the liquid had a layer of bubbles,or foam.

VOA: special.2010.02.17

We'll pull back that layer before long.

我们不久后会撤销那一层。

哈佛公开课 - 计算机科学课程节选

And so if we wanted to do this here, it's again, the same thing we're just now pulling back this layer and calling them char *s not actually strings.

如果我们想要在这里这样做，再次，我们撤销这一层,把它们叫做char，*s，实际上不是字符串。

哈佛公开课 - 计算机科学课程节选

In the deep water, large swaths of Wilcox sediment slumped over the side of the continental shelf and were swallowed by a layer of salt that dates back to when the American continents pulled away from Europe and Africa.

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In his studio, Mulvany would give them the once over, improve them, layer them up and email them back to McGrane to revise.

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The micoach Elite System includes a small data cell that fits into a player's base layer in a protective pocket on the back between the shoulder blades.

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