| 1. | Aerospace ; subject group index of aerospace standards ; workshop facilities
航空航天.航空航天标准专业分组目录.工厂设备 |
| 2. | Aerospace ; subject group index of aerospace standards ; aircraft airframe and propulsion system
航空航天.航空航天标准专业分组目录.飞机 |
| 3. | Aerospace ; subject group index of aerospace standards ; manufacturing technological processes
航空航天.航空航天标准专业分组目录.制造方法工艺 |
| 4. | Aerospace - subject group index of aerospace standards - part 7 : air cargo and ground equipment
航空航天.航空航天标准的专业分类.第7部分:空运货物 |
| 5. | Aerospace - subject group index of aerospace standards - part 0 : arrangement of classification numbers ; survey
航空航天.航空航天标准的专业分类.第0部分:分类方法 |
| 6. | Aerospace ; subject group index of aerospace standards ; basic standards , materials , semifinished products , standard parts
航空航天.航空航天标准专业分组目录.基础标准材料 |
| 7. | According to city ecosystem evaluation standards set by professor song yongchang , passing 4 groups index and 43 items index , this text proceeded city ecosystem evaluation of zhengzhou
摘要以宋永昌教授设置的城市生态系统评价标准为依据，通过4组共43项指标对郑州市的城市生态系统进行了评价。 |
| 8. | By means of variational structure and z2 group index theory , we obtain multiple solutions of boundary value problems for second - order ordinary differential equations and lower bound estimate for number of the solutions
摘要本文利用变分原理和z2不变群指标研究了一类二阶常微分方程奇异边值问题的多重解，得出了这类解个数的下界估计。 |
| 9. | Based on summarizing achievement that former studied on it , the author reviewed some advances on soft rice such as the distribution , agronomic characters , quality characters , group index and the relation with environment
因此，开展云南软米资源研究很有必要，就近年来对软米资源的分布、主要农艺性状、品质特征、分类指标以及与环境的关系等5个方面的相关研究进行综述，并提出一些加快云南软米资源研究的建议及育种方向的探索。 |
