This paper deals with the effectiveness of H-HA models, D-H models and maximum density-D models of Chinese fir and Masson pine, making use of computerized simulation tests.
用计算机模拟试验的方法，对杉木和马尾松平均树高、平均胸径及最大密度的数学模型的预报有效性进行检验。
My mom and da d always tell me: if I want to succeed, I need toh a ve good ha bits.
我的妈妈和爸爸总是告诉我：如果我想要成功，我需要有好的习惯。
"Ha! " he answered. "I said I wor sure it wor a lie. But they said tha' d told Fred hodgkisson. "
“哈！”他答道，“我就说他们一定在撒谎。可他们说那是你告诉弗雷德·霍奇金森的。”
The optivity of annulene compounds abided by the helix law, that is, right handed helix is D-rotatory and left ha…
轮烯类化合物的旋光性也遵循右螺旋右旋，左螺旋左旋的螺旋规律。
HA C Y, WANG D X. Storage properties of bleached lac(V)-kinetics of reaction between NaClO and shellolic acid[J]. Chemistry and Industry of Forest Products, 1997,17(1):1-5.
[19]哈成勇，王定选。漂白胶贮存性质的研究（第五报）——紫胶树脂环状组分氯化动力学的研究[J]。林产化学与工业，1997，17（1）：1-5。
HA C Y, WANG D X. Storage properties of bleached lac(V)-kinetics of reaction between NaClO and shellolic acid[J]. Chemistry and Industry of Forest Products, 1997,17(1):1-5.
[19]哈成勇，王定选。漂白胶贮存性质的研究（第五报）——紫胶树脂环状组分氯化动力学的研究[J]。林产化学与工业，1997，17（1）：1-5。
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