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| 11. | It was analyzed by means of metallographical examination, chemical composition analysis and inclusion |
| 通过对层裂坯料进行宏、微观检验、化学成分和夹杂物分析，认为大颗粒硫化物夹杂及其富集破坏了基体的连续性，是镦制过程中产生裂纹的主要原因。 |
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| 12. | In this paper, by means of macro-morphology inspection, chemical composition analysis, microstructure |
| 摘要采用断口宏观形貌观察、化学成分分析、显微组织检验、力学性能则试及腐蚀产物的X射线衍射分析等手段，对断裂与部分抽检的卡瓦螺栓进行了综合试验分析。 |
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| 13. | A causal diagnosis is conducted on the yellows of Machilus thunbergii by means of the soil-plant chemical |
| 摘要采用土壤植物化学分析、酶学诊断和田间试验对舟山市朱家尖苗木基地盐碱地土壤红楠黄化成因进行了研究。 |
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