radius of cut 中文意思是什麼
radius of cut
解釋
挖掘半徑-
2 % 22 % and 29 % respectively less than using other three knives at cutting speed of 500mm / min when the moisture contents of rootstalks was 48. 2 %. the cutting forces were tested at four different parts of rootstalk that were the middle part along a radius, the tip part along a radius, the middle part along axis and the stalk part along a radius, and the force at the middle along a radius is the largest and increase 32 % 45 % 111 %, respectively more than at the other three parts. the force increase 37 % to cut the rootstalks from the areas one crop a year more than that from two crops a year
試驗結果表明，根茬含水率愈高，剪切力愈小，根茬含水率與剪切力近似為二次曲線關系；刀片剪切速度愈快，剪切力愈小；凸曲線、斜線、凹曲線和直線四種不同的刀刃曲線對整株根茬剪切力依此由小到大，凸曲線和斜線剪切時有一定程度的滑切作用，所以剪切力相比較小，當根茬含水率為48 . 2 ，剪切速度500mm min時，與其他三種曲線相比凸曲線型刀刃的剪切力依次分別減少了7 . 2 、 22和29 ；對根茬中部、梢部和根部的剪切力，在相同試驗條件下，徑向中部最大，比梢部，軸向根部和根部莖稈所需剪切力分別增加32 、 45和111 ；當含水率為48 . 2 ，刀片的剪切速度為500mm min時，一年一熟玉米根茬比一年兩熟的玉米根茬剪切力增大37 。 -
The curves showed that the moisture contents of straw and the shear bar are the main factors impacting the cutting ratio besides cutting speed. the speed of 40mm / s is necessary to cut off wet straw. ( 4 ) the testing results indicate that the rotary speed of the blade axle need to be more then 1230 rpm ( rotary radius of the blade is 25cm ) to cut off straw ( with moisture content less then 20 % )
試驗結果表明，對于乾的長秸稈，刀片切割速度達到15m / s時，切斷率達100 ；對于乾的短秸稈，刀片切割速度需達到20m / m / s以上；要切斷濕秸稈需要有40m / s以上的切割線速度；加定刀與不加定刀對于切斷麥秸這類軟質秸稈是非常重要的，其切斷速度差別很大；另外，麥秸不同部位所需要的切斷速度也是不一樣的，根部較之頂部和中部更難切斷。 -
A short - cut method for finding the radius of convergence on the n
型冪級數的收斂半徑的簡捷求法 -
Calculating and analyzing shows that the smaller the radius of the gaussian beam, the smaller the cut - off spatial frequency in both transverse and longitudinal directions, the lower the imaging quality
計算與分析表明，光束的束腰半徑越小，三維成像時橫向和軸向的截尾空間頻率都減小，成像品質下降，解析度降低。
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