切挖 meaning in English
undercutting
Examples
- The mathematic models of power consume and single blade resistant torque have been set up . the power consume increase exponentially with increasing rotor speed and forward velocity
( 4 )设计出了新型的切挖刀，并对其结构参数进行了较深入的分析和研究。 - The research results include : 1 a new method of dealing with corn rootstalk is put forward and a new model of no - tillage planter equipped with cutting and digging corn rootstalk mechanism has been developed
为满足生产需要，本文对免耕播种机玉米根茬处理问题进行了深入的理论分析与系统的试验研究，主要研究成果包括： ( 1 )提出了新的切挖处理播种带玉米根茬的思想。 - 4 a new blade has been developed and its parameters have been studied in detail . 5 a new no - tillage planter 2bmyw - 2 is made and more than 110mu fields in herbei province are planted using it . the production experiments shown that the rate of clearing rootstalks away from seed beds is more than 92 % and disturbed soil is from 20 % to 27 % and the working performance of the sample machine is excellent
( 5 )制作出2bmyw - 2型切挖式玉米免耕播种机一台，在河北丰宁和学校农场进行了110多亩的免耕播种试验，结果表明：该机对播种带的玉米根茬清除率达92以上，种床基本无玉米根茬，破茬能力强、清茬效果较好，动土量少，表土破土量约占20 27 。 - The test results in the no - tillage fields with corn rootstalks shown that the sample machine has a good ability to cut and dig corn rootstalks only in the seed beds so that the new no tillage planter can create a good condition of seed bed and have lower power consume . 2 system experiment is conducted to investigate the mechanical properties of rootstalks and soil rootstalk composite . the experiment results include : ? he maximum cutting force decreased exponentially with increasing cutting speed and the moisture contents of rootstalks
通过对新型免耕播种机的田间生产试验，证明了切挖处理播种带玉米根茬原理可行，所开发的机具结构新颖，具有创新性；该机不但能创造无根茬的良好种床条件，有利于种子生长发芽，而且不需大量粉碎根茬，因而扰土量少、整机消耗动力小、破茬入土能力强，有利于充分发挥保护性耕作的优势。