true resin

Effect of natural resin on frost resistance and mechanism of concrete;

天然树脂对混凝土抗冻性能的影响与机理

Gum rosin is a kind of natural resin with high economic value.

松香是一种具有重大经济价值的天然树脂。

Crude turpentine obtained from the cluster pine tree(Pinus pinaster)of southern Europe.

海松树脂从产于南欧的丛生松树（松属南欧海松）上获得的天然树脂

Rosin: A type of matural resins and is an important component in papermaking size.

松香:是一种天然树脂，并且是造纸用胶的一种主要成份。

Extraction of Norbixin and Studies on Its Stabilities;

天然食用色素降胭脂树橙的制备及稳定性研究

An Application of Macroporous Resin in the Extraction and Isolation of Natural Products;

大孔树脂在天然产物提取分离中的应用

Compapative study on friction and abrasive resistance of resin teeth and natural enamel

树脂牙与天然牙釉质摩擦磨损性能的研究

Studies on solvent residual analysis in natural pigment annatto

天然色素胭脂树橙中溶剂残留分析方法的研究

Adsorption of Natural Organic Acids Using Bi-function Resin

复合功能树脂对水体中天然有机酸的吸附

Experimental investigation on the removal of organic matter in trona using macroporous adsorption resins

大孔吸附树脂脱除天然碱中有机质的实验

Instead of animal tallow (sodium tallowate), common to most soaps, we feature a pure vegetable base of palm and coconut oils.

一般的肥皂含有动物脂肪，这天然皂只含有天然的棕榈及椰子树油。

a black resinous substance obtained from certain trees and used as a natural varnish.

一种黑色的树脂物质，从某些树中提取，用作天然漆。

A glossy, resinous material, such as the exudation of the lacquer tree, used as a surface coating.

天然漆一种用作表面涂层的光滑的树脂般的物质，如漆树的分泌物

A naturally occurring mixture of an oil and a resin extracted from various plants, such as pine or balsam fir.

含油树脂一种天然的油和从各种植物如松树和胶杉中提炼出来的树脂的混合物

Natural resins are rosin and shellac. Synthetic resins are organic compounds which have been chemically nodified ([polymerised].

天然的树脂是松香和虫胶。人造树脂是把有机化合物用化学方法改变（聚合化）而成。

a naturally occurring mixture of a resin and an essential oil; obtained from certain plants.

一种天然生成的树脂和香精油的混合物，从某些植物中获

Study on Synthesis and Application of New Types of Ion Exchange Resins from Natural Fiber Materials;

新型天然纤维材料离子交换树脂合成与应用研究

Synthesis of Macroporous Adsorption Resins and Research on Adsorption Properties for Anthocyanins in Lonicera Carulea;

大孔吸附树脂的合成及其对天然物中花色甙的富集研究

A Modified Natural Graphite Negative Materials of Lithium Ion Battery with Phosphorus-containing Phenol Resin

磷酚醛树脂包覆球形天然石墨作为锂离子电池负极材料

Study on the PVC Paste Resin/Natural Mineral Composites Emitting Negative Ions

释放负离子的PVC糊树脂/天然矿物复合材料的研究