However, apart from the technological difficulties of preparation, casting resins affords a further wide field of application . 然而，除了制备工艺的困难外，模浇树脂有更广泛的应用范围。
Such thermosetting resins as phenol-formaldehyde resins, ployester resins, and epoxy resins do not belong to this classification . 像酚醛树脂、聚酯树脂和环氧树脂等热固性树脂不属于此类。
There came the presence of a large number of minute air bubbles resulting from incomplete impregnation of the fibres by the resin . 由于树脂不能完全渗入到纤维中，因而造成了大量微小的气泡。
Another problem with demineralizers is that small resin particles are often dislodged from the bed and enter the water stream . 用脱矿质器的另一个问题是，小的树脂粒常常逸出树脂床而进入水流。
Thermosetting resins impart durable press or wash-and-wear properties to the fabric and improve the fastness of the repellent . 热定型树脂给织物添加永久性定型或洗穿性能，并改进防护剂的牢固性。
New detergents and resins which are introduced on to the textile market are generally accompanied by a new or different effluent . 被引入纺织市场的新的洗涤剂和树脂通常带来一种新的或不同的废水。
He discovered that objects charged with vitreous electricity repel each other but attract objects charged with resinous electricity . 他发现，带有玻璃质电的物体彼此排斥，但与带树脂质电的物体则相吸引。
It is obviously not possible in the present work to examine in detail the properties of all the thermosetting resins available for casting models . 显然不可能在本书中对用于浇注模型的所有热固树脂的性质进行详细研究。
One, the epoxy itself which is in the form of a thick liquid, sometimes is called a "resin" and the other is an "accelerator" or "hardener" . 一种是稠状液体的环氧树脂本身，有时称“树脂”，另一种是“加速剂”或“固化剂”。
They include alkaloids, steroids, phenolics, saponins, tannins, resins, essential oils, various organic acids, and other componds . 它们包括生物碱、甾类化合物、酚类、皂角苷、丹宁、树脂、香精和各种有机酸，以及其他化合物。
