On the bases of a great amount of test data and statistic analyses, this paper discussed the major type of faults of ICE.
本文在大量试验和统计分析的基础上，论述了内燃机的主要故障类型。
Dividing the forest site type, comprehensive appraisal the quality of forest land are the bases to match species with the site, scientifically mange and afforest and predict productivity.
划分森林立地类型，综合评价林地质量，是适地适树，科学地进行营造林和预测森林生产力的基础。
Macadam type bases involving successive layers of crushed rock bound with rock dust were also used.
人们曾经使用“石结”基层——几层由石粉黏结在一起连续的碎石层。
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