masson pine的例句大全

Most serious drought in 1994 caused the large number of the death of black pine and Masson pine that was the basic factor of drought stress.

1994年特大干旱是导致感染松材线虫后黑松、马尾松大量死亡的根本原因。

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Using quadratic orthogonal rotation design, with the aid of computer, this paper established a mathematical model of ground diameter for masson pine ( Pinus massoniana), which related to fertilizer nitrogen, fertilizer phosphorus, fertilizer potassium, density and seedling date.

本文采用二次正交旋转组合设计方法，建立了N、P、K、空间条件、时间条件五项技术措施与马尾松苗木地径关系的数学模型。

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In a poorly bonded sheet of masson pine pulp, tearing strength depends on fiber length.

对于马尾松浆，在纤维间结合较差的纸页中，纤维长度对纸页撕裂强度的影响非常明显；

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A Preliminary Study of Germination Characters of Masson Pine pollens and Pollens Vitality of Masson Pine with Different Stands He sat on the ground which was littered with dry grass and pine cones.

马尾松花粉萌发性状和不同林分马尾松花粉生活力的初步研究他坐在地上，地上有些干草与松花。

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Study on Improving the Tint of Masson Pine Kraft Pulp

改善马尾松硫酸盐本色浆色泽的研究

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By the statistical analysis method, the authors researched the growth model and cutting age of masson pine natural forest with the sample plot inventory data.

根据标准地调查资料，应用统计分析方法研究生长模型，并结合森林经营实际确定采伐年龄。

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Trees from twenty open pollinated families of masson pine were chipped, screened and pulped using the kraft process to investigate the genetic differences of properties of unbleached kraft pulp between the families.

对13年生20个马尾松自由授粉家系100株树木进行硫酸盐法制浆试验，研究未漂硫酸盐木浆品质和物理性能在家系间的遗传差异。

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Easy and Quick Test of Masson Pine Seed

马尾松种子的简便快速检验

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Study on Intraspecific Competition of Young Masson Pine

马尾松中幼龄林种内竞争的研究

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At same slope degree and length, the soil erosion rate was decreased with the order of young chestnut garden> bamboo field> sparse masson pine forest land> tea garden.

相同坡度和坡长条件下，幼龄板栗园的土壤侵蚀速率>雷竹园>稀疏马尾松林地>茶园。

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Study on correlation between chemical element contents in the annual ring of Masson pine tree and those in soils near tree roots in red soils area of Jiangxi Province

江西红壤地区马尾松的年轮与其根部土壤中化学元素含量的相关性研究

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Forecast Models of the Area of Leaf of Single Masson Pine Tree

单木叶面积预测模型

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Study on the Ripe Age of Masson Pine for Raw Material Papermaking

马尾松造纸原料林成熟龄的研究

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Study on good provenances of Masson pine for pulpwood on hilly lands of central Hubei Provinces

鄂中丘陵岗地马尾松造纸材优良种源的研究

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The value of the nugget and sill ratio is between 25% and 75%, Blong to a moderate degree of spatial correlation, and the status of Masson pine for the space-related degree is better than Chinese fir.

块金值与基台值的比值均在25%～75%之间，属于中等程度的空间相关，且马尾松地位指数的空间相关程度比杉木的要大。

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Economical Analysis of Optimal Culture Density of Masson Pine Plantation for Pulp

马尾松纸浆材林优化栽培密度经济分析

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Firms on Sale These calculation results may be considered as basis for pricing masson pine plantations for trade.

上述计算结果，可作为马尾松人工林折价出售的价格依据。

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Control Pitch Trouble of Masson Pine TMP with Oxidants

氧化剂控制马尾松TMP树脂障碍

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Karyotype Analysis and Fuzzy Clustering on Different Seed Sources of Masson Pine and Japanese Black Pine

马尾松与黑松种源核型和模糊聚类

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The pine is a rich plant resources of Zhejiang Province, the distribution area of many types of masson pine, slash pine and black pine.

浙江省松属植物资源丰富，其中分布面积较多的种类有马尾松、湿地松和黑松等。

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