2) Yanbian apple-pear main production area
延边苹果梨主产区
1.
[Method] Based on field survey,120 samples were collected in Yanbian apple-pear main production areas,including Longjing,Sanhe,Huichun and Tumen.
[方法]通过实地调查,在延边苹果梨主产区采集120个样品、测试分析了16种元素和理化性质的相应指标,从土地肥力、土地环境两个方面对研究区进行土地质量地球化学评价。
4) Apple production
苹果生产
1.
The soil moisture decrease has endangeredthe apple production in the region.
黄土高原苹果基地果园土壤的干燥化相当广泛 ,已经成为影响苹果生产的主要问题。
2.
0, the rules of hail s space - time distribution were studied and its impacts on apple production had been found out .
0作专题图,研究了陕西苹果基地县冰雹的时空分布规律对苹果生产的影响。
3.
The variation characteristics of the main meteorological restricting factors for and the influences on apple production in the 4 northern counties of Yan\'an are analyzed by means of the local meteorological observation data.
利用当地气象观测资料,分析延安北部4县苹果生产主要气象限制因子的变化特征和对发展苹果种植业的影响。
5) Apple production
苹果产业
1.
This text possesses the superiority of natural conditions, the long history of the apple production , the better foundation of production technology, the bright future of the market in Zhengning county.
苹果是世界主要果品之一,栽植面积、产量居水果前列,其果实甜酸适口,味美色艳,深受人们喜爱,近年来苹果产业可持续发展取得了令人瞩目的成就。
6) Apple industry
苹果产业
1.
Consideration on development of apple industry in Shaanxi Province;
陕西苹果产业发展的新思考与新探索
2.
Analysis on benefits of investment in apple industry of liaoning and Shannxi
辽宁陕西两省苹果产业投资效益分析
补充资料:主链断裂和主链裂解
分子式:
CAS号:
性质:又称主链断裂和主链裂解。发生在有支链结构高分子的主链上的共价键的断裂反应。可细分为两种类型:一种为主链端基断裂(断裂反应发生在末端链节上);一种为主链无规断裂(高分子主链的断裂没有固定点,主要发生在弱键处)。
CAS号:
性质:又称主链断裂和主链裂解。发生在有支链结构高分子的主链上的共价键的断裂反应。可细分为两种类型:一种为主链端基断裂(断裂反应发生在末端链节上);一种为主链无规断裂(高分子主链的断裂没有固定点,主要发生在弱键处)。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条