表土犁 的英文怎麼說
中文拼音 [biǎotǔlí]
表土犁
英文
stubble cleaner-
But there are no report of the design and research on bionic adhesion decreasing efficiency of the standard disk plow that has a great difference to other soil touched component on working manner and force support status currently. in this paper, standard disk plow was selected to be research object. with disk plow referred as bionic components and the theory of soil touched component adhesion decreasing and resistance reducing applied, we modified its shape and promoted its property
本文選擇標準型圓盤犁作為試驗研究對象，以圓盤犁刀為具體的仿生設計部件，運用觸土部件減粘脫土理論，在仿生表面改性、改形研究以及傳統圓盤犁刀結構基礎上，首先對圓盤犁刀進行了若干種仿生非光滑結構不同組合設計，繼而製作了兩組試驗用仿生圓盤犁刀，最後對設計加工的仿生圓盤犁刀，分別進行了正交試驗設計和二次回歸試驗設計，在室內土槽中進行了研究條件下的耕作試驗。Low frequencies are related to the random property of soil rupture, whereas random vibration frequencies of the tractor - implement system are shown in the high frequency range
研究結果表明：低頻力與土壤振動裂縫等隨機因素有關，而高頻力則是由於拖拉機鼠道犁機組的振動引起的。The analysis of grain size of later pleistocene loess covering on the northern slop of tian shan mountains and ili basin shows that the tian shan loess is composed mainly of silt, accounting for 60 - 70 %, and some clay, accounting for 15 - 20 %
摘要天山北坡和伊犁盆地晚更新世典型黃土剖面粒度分析表明，天山黃土以粉砂為主，佔60 - 70 %左右，粘粒含量一般在15 - 20 %之間。
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