薄板(10)在内表面(12)有一个树脂体和一个凹槽(13)，位于对称平面内。

The lamellae (10) have a resin body and a recess (13) in the inner surface (12), in the plane of symmetry.

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莺-琼盆地存在巨厚的上第三系海相烃源岩，它含有丰富的超显微树脂体，因而可划分为好—很好烃源岩。

There are very thick Upper Tertiary marine hydrocarbon source rocks in Yong-Qiong basin, containing abundant supermicro resinous materials; Thus, they are classified as good-very good source rocks.

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通用电气在1909年授权生产胶木绝缘体，然后开始开发自己的树脂。

General Electric licensed Bakelite as an insulator in 1909, then began to develop its own resins.

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