例句與造句

1. Method of sample tree collection for physical and mechanical tests of wood
   木材物理力學(xué)試材采集方法
2. 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
   摘要利用二類調(diào)查布設(shè)的固定樣地，收集207株樣木調(diào)查資料，分別采用5個方程進行回歸擬合，選出杉木人工林地徑材積表的方程模型，利用一元材積表和二元材積表導(dǎo)算編制一元地徑材積表，并進行比較，結(jié)果表明二元材積表導(dǎo)算地徑材積表的方法精度較高，基本滿足林業(yè)生產(chǎn)所需精度要求，可以提供林業(yè)生產(chǎn)服務(wù)。
3. It's difficult to find sample tree in a sentence. 用sample tree造句挺難的