ground diameter meaning in English
地径
Examples
- The results showed that the ground diameter ( d ) and the nursery height ( h ) could he regarded as the indexes of the seedlings quality grading of zanthxyhum planisnum var . dingtanenesis
结果表明，地径( d )和苗高( h )对顶坛花椒苗木质量有很好的表达，可以作为苗木分级的质量指标。 - Carbo centreless grinding wheel is mainly grinding outside diameter of workpiece . it is suited for a grinding operation of mass production because of the higher efficiency for a grinding diameter
无心研磨砂轮主要以工件外缘研磨加工为主，由于所加工外径效率较高适用大量生产之研磨作业。 - This article uses fixation swatch founding for second - class investigation to obtain character of 207 sample trees , by which mathematics model of ground diameter volume table of chinese fir were deduced by regressing and imitating with five of equations respectively , and used unitary and binary volume tables of timber respectively to reckon an unitary ground diameter volume table , then compared the two ground diameter volume tables , so that a ground diameter volume table of chinese fir in yanping district was compilated to satisfy essentially the precision demand of forestry production , and to serve forestry production
摘要利用二类调查布设的固定样地，收集207株样木调查资料，分别采用5个方程进行回归拟合，选出杉木人工林地径材积表的方程模型，利用一元材积表和二元材积表导算编制一元地径材积表，并进行比较，结果表明二元材积表导算地径材积表的方法精度较高，基本满足林业生产所需精度要求，可以提供林业生产服务。