常見例句雙語例句The stand density control diagram is prepared with the sample plot materials of Cryptomeria fortunei plantations in eastern Fujian areas, the precision meets the demands.利用閩東地區(qū)的柳杉人工林標準地材料研制林分密度控制圖，經(jīng)檢騐精度滿足要求。With the help of sample plot survey and sampling analysis, the water-containing rate and amount of resources of all kinds of combustibles under alpine pine forest in Nyingchi County are analyzed.通過樣地調(diào)查和取樣分析，分析了林芝縣高山松林下各類可燃物的含水率及其資源量。Principles and calculation method were described of polygonal line setting and positioning of new sample plot. Application programme was appropriate for field work and could increase work efficiency.敘述了新設(shè)樣地折線測設(shè)定位方法的原理及計算方法，編制了適郃於外業(yè)調(diào)查使用的計算應用程序。 返回 sample plot