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- A black, viscous natural bitumen. 软沥青一种天然的黑色粘性沥青
- The article introduced the category of natural bitumen and the characteristic of gilsonite. 介绍了天然沥青的种类与天然岩沥青的特点。
- Any of various natural bitumens, such as mineral pitch or asphalt. 树脂，自然沥青某种自然的沥青，如矿石沥青或树脂
- natural asphalt; natural bitumen 天然沥青
- It is natural for a cat to catch mice. 猫捉老鼠是本能。
- It's natural to slack2 off towards the end of a hard day's work. 一天紧张工作快结束的时候有些放松是自然的。
- Many natural materials are becoming scarce. 许多天然原料越来越少。
- Study on performance of natural bitumen gilsonite modified asphalt and the mixture 岩沥青改性沥青及混合料性能研究
- Our motherland flows with natural resources. 我们祖国蕴藏着丰富的天然资源。
- Events took their natural course. 事态依自然进程发展。
- She has a natural wave in her hair. 她的头发自然卷曲。
- Magnetism is a natural phenomenon. 磁力是一种自然现象。
- It is difficult to be natural when one is tense. 人在紧张的时候很难泰然自若。
- Commercial scale reserve of natural bitumen and super heavy oil and their geological and technical prospect for development in Russia 俄罗斯天然沥青和超稠油的工业储量及其开采前景
- The egoism of an artist sometimes seem natural. 艺术家的自负有时看起来是自然的。
- They used only natural pigments to dye the wool. 他们只用天然颜料染毛织品。
- Children are natural exhibitionists. 儿童天生喜欢自我表现。
- Everything we used was made from natural materials. 我们所用的一切都是由天然材料做成的。
- It's quite natural that you should succeed. 你的成功是很自然的事情。
- He's a natural for the role of Lear. 他是李尔王这一角色的理想人选。
