[ C or U ] an industry that produces energy or basic materials, such as coal, oil, metals, crops, et[ C or U ] an industry that produces energy or basic materials, such as coal, oil, metals, crops, et
Developing countries often have a higher proportion of their workforce involved in primary industries than developed countries.
ECONOMICS, PRODUCTION the part of a country's economy that produces energy or basic materials,ECONOMICS, PRODUCTION the part of a country's economy that produces energy or basic materials,
The primary sector accounted for 42% of GDP, with agriculture representing just over half of this share.
The basic materials of Orval beer are spring water, malted two row barley, aromatic hops and candy sThe basic materials of Orval beer are spring water, malted two row barley, aromatic hops and candy s
酿造欧瓦啤酒的基本原料是水，两穗大麦麦芽，芬芳啤酒花和糖。
It is a cyclopaedia of the Spring and Autumn Period, also the basic material which used by us to proIt is a cyclopaedia of the Spring and Autumn Period, also the basic material which used by us to pro
它是春秋时代的百科全书，也是我们探索春秋时代文学演进状况的基本文献。
The special wire gauze used for making mesh reflector is one of the key basic material.The special wire gauze used for making mesh reflector is one of the key basic material.
用于网面材料的特种金属丝网布是制作网状天线的关键基础材料之一。
It flaked easily and provided the basic material for complex tools.It flaked easily and provided the basic material for complex tools.
这种石头很容易剥离，因此为制造复杂的石头工具提供了基本材料。
材料科学 materials science的用法和样例：例句The theory based on basic material材料科学 materials science的用法和样例：例句The theory based on basic material
简单概述了基本材料科学的理论。
