本文用主成分分析的方法构造竞争指标并建立单木生长模型。
This paper forms competition index by means of principle elements analysis and sets up individual tree growth model.
结果表明：该竞争指标对杉木人工林适用，所建立的单木生长模型符合精度要求，可用于预估林分生长。
Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.
结合单木生物量模型和林分直径分布预估模型可以对不同立地、不同林龄下落叶松林分各组分的生物量进行预测。
The biomass of larch plantation of different site conditions and forest ages could be estimated by incorporating the individual tree biomass model and diameter distribution prediction model.
本文在对落叶松人工林进行立地分类和立地质量评价的基础上，建立了落叶松人工林的矩阵模型和单木生长模型。
Based on the site classification and site evaluation, the matrix models (size class model) and individual tree growth model was developed in this paper.
本文研究了马尾松硫酸盐浆单段氧脱木素的最佳工艺条件。
The optimum conditions of masson pine kraft pulp single stage oxygen delignification has been studied.
通过单因子实验、比色法和愈创木酚法探讨PP333对试管苗的影响。
The effect of PP333 were explored by single factor design, colorimetry and Guaiacol process.
栌菊木是菊科的单型属。
XM 29确定为一种抵肩射击，20毫米口径单发自动榴弹发射器并结合一个紧凑型，重量轻的5.56毫米步木仓做为后备武器。
The XM29 was intended to be a shoulder-fired, semi-automatic grenade launcher in 20 mm calibre and to incorporate a compact, lightweight 5.56 mm rifle as a back-up weapon.
都日木断陷是二连盆地中一个中新生代单断型凹陷，其地表景观为腾格尔沙漠的一部分。
Durimu sag is a Mesozoic Cenozoic sag of Erlian Basin and its landscape is a part of Tengger Desert.
主要成份：去离子水、甘油、乳木果油、二甲基硅油、单硬脂酸甘油酯、霍霍巴油、丙烯酸聚合物、烷基咪唑脲、复合维他命e、尼泊金甲酯、透明质酸、香精等。
Ingredients: Deionized water, glycerin, shea butter, dimethyl silicon oil, glycerin monostearate, jojoba oil, acrylic polymer, imidazolidinyl urea, compound VE, methylparaben, HA, essence, etc.
都日木断陷为二连盆地的中新生代单断型凹陷，其地表为腾格尔沙漠的一部分。
Durimu faulted depression is a Cenozoic simple fault type depression in Erlian basin. Its surface is a part of Tengger Desert.
本文研究了马尾松硫酸盐浆单段氧脱木素的最佳工艺条件。
The optimum conditions for two stage delignification of masson pine kraft pulp were studied.
目前蒸汽消耗占木糖生产成本的50%左右，如何降低蒸汽单耗是实现降本的主要工作之一。
Steam consumption accounts for about 50% of the total cost. Therefore, finding a method to reduce the unit consumption of steam is one of the focuses of our work.
目前蒸汽消耗占木糖生产成本的50%左右，如何降低蒸汽单耗是实现降本的主要工作之一。
Steam consumption accounts for about 50% of the total cost. Therefore, finding a method to reduce the unit consumption of steam is one of the focuses of our work.
应用推荐