Using hemihydrate gypsum as main raw materials and frothing by gum rosin composite vesicant to produce gypsum heat preserving material.
以建筑石膏为原料，采用松香类复合发泡剂发泡制成石膏保温材料。
It has the highest gas-impermeability of any plastic, about 10,000 times that of ordinary polyethylene, which makes it an excellent material for preserving food.
在所有塑料中，它具有最高的阻气性能，大约是普通聚乙烯的10,000倍，这使它成为可用来保护食品的最佳材料。
It introduces cement stabilized soil material from matter need attention of use-process, health preserving and primary material, which has meaning in spreading application of the structure.
从使用工艺注意事项、养生原则以及原材料要求等方面对水泥稳定土材料进行了介绍，对推广应用此类结构在工程上的应用具有一定的意义。
The experiment with the material of test-tube seedling of Solanum tuberosum and by the way of Trissue culture, studied the function of Pix in the preserving of test-tube plants of solarium tuberosum.
本试验以马铃薯试管苗为材料。用组织培养的方法研究了缩节胺在马铃薯脱毒试管苗保存中的作用．为缩节胺在植物组织培养中的应用提供基础材料。
The present invention relates to production process of antibiotic fresh keeping film for preserving food or food material.
本发明是一种对食品或食品原料具有抗菌保鲜或延长其保质期作用的抗菌薄膜的制造方法。
Environmental protection and energy saving is our basic principle, so the main patented product, the granite composite heat-preserving plate, is an integration of stone material and heat-preserving.
我们倡导环保节能理念，主要专利产品花岗石复合保温板，集石材与保温于一体。
Environmental protection and energy saving is our basic principle, so the main patented product, the granite composite heat-preserving plate, is an integration of stone material and heat-preserving.
我们倡导环保节能理念，主要专利产品花岗石复合保温板，集石材与保温于一体。
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