In order to understand the quantitative relationship between static bending modulus of elasticity (Eb) and moisture cont......

　　The shoot beetles Tomicus minor,T.yunnanensis,and T.brevipilosus have been decimating Pinus yunnanensis trees for mo......

松脂是松属植物产生的一种重要化工原料,市场需求量很大,但目前云南松采脂不科学造成松脂产量很低,松脂供不应求。以云南双柏县云......