05:59 Apr 2, 2013 |
English to Chinese translations [PRO] Agriculture | |||||
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| Selected response from: Kingold China Local time: 11:46 | ||||
Grading comment
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Summary of answers provided | ||||
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3 +1 | 土壤的轮迹状压实 |
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土壤的轮迹状压实 Explanation: 在网上找到这么一段解释: Some important things to remember: • Most compaction is caused by equipment traffi c • Up to 80% of compaction in the fi eld occurs on the fi rst pass of the season • Surface compaction is caused by high ground pressure created by reduced contact area • Deep compaction is caused by high axle loads • Slip compaction is caused by low surface contact areas and shearing of the topsoil • Pinch-row compaction is caused by dual or triple wheels as ground pressure from the tyres shifts from the centre of the tyre to the outside • Compaction can be reduced in two ways: mechanical techniques and controlled traffi 由此可见,这种压实是由于农用机械的轮子引起的,在轮子下的泥土被挤向外侧,可以想见,会在机械后留下两条微微隆起的泥土车迹,而在轮子经过的正下方区域,则会微微下凹。 Reference: http://www.challenger-ag.com/EMEA/static/Downloader.aspx?fil... |
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