wood shrinkage

The MC grade, shrinkage and wood surface stress during drying progress was the largest in consecution heating, and was least in fluctuating-heats ( 6h). The effect of heating methods on dry quantity of small-diameter lumbers was significant.

干燥过程中锯材的含水率梯度、表层应力和干缩量均以连续加热干燥试验最大，波动2时干燥试验次之，波动6时干燥试验最小。

Whether annual ring width markedly affects both strength properties and shrinkage properties of the wood is discussed.

讨论了年轮宽度与木材强度性能和干缩性能的关系。

The wood shrinkage rate and swelling rate is linear reversely related to wood with no treatment but linear positively related to wood with treatment.

未处理材的木材全干干缩率、木材湿胀率与基本密度呈线性负相关，处理材的木材全干干缩率、木材湿胀率与基本密度多呈线性正相关；

The present paper deals with air drying rate of various standards of rubber sawn timber after preservative treatment with Boron-Sodium pentachlorophenate mixture, number of days for achieving equilibrium moisture content ( 18%), shrinkage rate and deformation of rubber wood during air drying.

本文研究了经硼酚合剂处理后不同规格的橡胶木制材的气干速率；气干至平衡含水率（18%）所需要的天数；

The changing features of shrinkage stress for Sugi ( Cryptomeria japonica D. Don) wood specimens were studied when dried with radial restraint using superheated steam at 120~ 180 ℃, and the effects of temperature and relative humidity on radial shrinkage stress were analyzed.

试验研究了日本柳杉在120～180℃高温高压过热蒸汽条件下，干燥过程中所伴随的收缩应力的发生发展特征，以及温度和相对湿度对径向收缩应力的影响。

Effects of different angles on the growth stress, wood density and wood shrinkage of the reaction wood

不同倾斜角度对应力木生长应力、木材密度和干缩性质的影响

Shrinkage of Juvenile Wood and Mature Wood of Pinus koraiensis Plantation

红松人工林幼龄材与成熟材干缩性的比较