天然 的中文句子和英文句子

水晶石石英断片，直径4到64毫米（0。16到2。51英寸），尤指天然圆形的石英颗粒

A rock fragment between4 and64 millimeters(0.16 and2.51 inches) in diameter, especially one that has been naturally rounded.


备解素，血清灭菌蛋白血清中与防御素协同参与身体的免疫反应的人体血液的天然蛋白

A natural protein in human blood serum that participates in the body's immune response by working in conjunction with the complement system.


钻心圆柱形物质，用于垂直地钻入地下然后取出以测定石油或天然气的组成或存在

A cylindrical mass drilled vertically into the earth and removed from it to determine composition or presence of oil or gas.


生药学药理学的一个分支，研究处于天然或原始状态的药物

The branch of pharmacology that deals with drugs in their crude or natural state.


他们继续往下钻, 终於找到了一些天然气的气阱.

They continued down until they came to some pockets of natural gas.


他们只用天然颜料染毛织品。

They used only natural pigments to dye the wool.


石脑油一种高度挥发性的易燃液态碳氢化合物混合物，从石油、煤焦油和天然气中提炼出来，并用作石油、溶剂和制造各种化合物中

Any of several highly volatile, flammable liquid mixtures of hydrocarbons distilled from petroleum, coal tar, and natural gas and used as fuel, as solvents, and in making various chemicals.


聚合物许多天然和人工合成的化合物中的任一种，通常具高分子的重量，包含最多可达上百万个的彼此重复且相连的单位，每一个单位都是一个相对较轻和较简单的分子

Any of numerous natural and synthetic compounds of usually high molecular weight consisting of up to millions of repeated linked units, each a relatively light and simple molecule.


这个港口是天然港。

This harbor is a natural harbor.


主要管道输送水、天然气、石油系统中的主要管道或沟渠或其他公用事业设备

The principal pipe or conduit in a system for conveying water, gas, oil, or other utility.