Some plastic materials change over time.
有些塑料随着时间的推移而改变。
We promise that we all metals, plastic materials to do 48 hours of salt spray test.
我们郑重承诺，我们所有金属、塑料材料做到48小时盐雾测试。
The plan: The company wants to make durable plastic materials that can conduct electricity.
计划：他们的公司希望制造出耐用的塑料导电材料。
The results showed that serious migration happens when the plastic materials contact with oil.
试验结果表明：油脂类化妆品与塑料容器间的迁移情况较为严重。
Plastic materials should take into account its ductility, unscreened thermoplastic deformation.
塑料材料要考虑到其延展性、热塑变形等。
In fact, it is one of the first residential projects which features plastic materials as a skin.
实际上，这是第一个民居运用塑胶材料作为外墙的。
It can used to measure the Rockwell hardness of ferrous, non-ferrous metals and plastic materials.
该硬度计适用于黑色金属、有色金属和非金属材料的硬度测定。
More than two years of rubber materials, plastic materials, metal materials procurement experience.
两年以上橡胶料、塑料原料、金属材料等采购经验。
Rachel titanium technology of rubber and plastic materials to the processing technology and application.
瑞钛科技致力于对橡塑料材料的加工技术及应用。
Squeeze flow between two parallel disks is considered for rigid-plastic materials with partial wall slip.
两平行刚性圆盘挤压理想刚塑性介质时，通常考虑圆盘与介质的界面之间存在部分滑移。
The results of query show that this method can fairly well solve the problem in plastic materials selecting.
查询结果表明此方法在实际应用中能够较好地解决注塑材料的选择问题。
Recently, fiber reinforced plastic materials as reinforced bars and tendons are used in prestressed concrete structure.
近年来，纤维复合塑料材料作为钢筋和预应力钢筋被日益广泛地应用于预应力混凝土结构。
By means of a new void - containing material model, analysis of shear localization for plastic materials is carried out.
利用新的含微孔材料模型对塑性材料局部剪切失稳进行了分析。
It is often necessary to bond plastic materials to metals or other plastic materials, or simply print on a plastic surface.
它往往是必要的债券塑料材料金属或其他塑胶原料，或只是打印在塑料表面。
Sales in production machinery, it is also operating waste plastic materials and renewable stars and the recovery of output.
公司在生产销售机械的同时，还经营废旧塑料和再生颗料的回收与产出。
The method was not only suitable for ideal elastic plastic materials, but suitable for the normal materials with hardness trend.
该方法不仅适用于理想弹塑性材料，而且适用于常规的具有硬化趋势的材料。
Based on an approximate interpolation scheme, an analytical model for void closure in nonlinear plastic materials was established.
采用插值近似，建立了空洞闭合的解析模型，发现空洞变形的主要机理来自于空洞周围基体材料的塑性流动。
The crack tip stress-strain field of elastic-plastic materials are analysed by finite element method in the plane stress condition.
用有限元方法对平面应力条件下弹塑性材料的裂纹尖端应力应变场进行了计算。
Researchers have been concerned for some time about chemical compounds that make up plastic materials getting into the food supply.
研究者们对将塑料添加进食品的化合物已经关注了有一段时间了。
Applicable to steel equipment, Bridges, pipes, wood, concrete, stone and plastic materials such as surface decoration and protection.
适用于钢铁设备、桥梁、管道、木材、混凝土、石材和塑料等材料的表面装饰及保护。
More than two years' sales experience in plastic materials especially in the field of pipe industry, excellent graduate is also welcome.
两年以上销售工作经验，销售管道料或有相关行业工作经验者优先。优秀的应届毕业生亦可考虑。
The sophisticated combination of the plastic materials and cardboard saves resources and environment in terms of resources and recycling.
在复杂的塑料材料组合和纸板在资源节约和循环方面的资源和环境。
This standard covers the polymeric content and physical characteristics of PP (polypropylene) plastic materials for injection molding and extrusion.
这个标准涵盖用于注模和挤压成形的PP(聚丙烯)塑料材料的聚合体含量和物理性能。
Analytical results show that the transformation is effective except for a special - limit case of power hardening media-the ideal plastic materials.
分析结果表明：除幂硬化材料的极限情况——理想塑性外，此变换有效。
PREVIERO is specialized in the production of machines and plants for granulation of plastic materials, rubber, paper, cellulose and similar products.
普瑞威努公司专业生产破碎机，可用于破碎塑料、橡胶、纸张、纤维素以及类似物质。
The basic equations with Mohr-Coulomb criterion are solved by the line field analysis method near the joint line in an elastic-perfectly plastic materials.
通过在节理线上提出合理的边界条件，得出了节理线附近的弹塑性区应力场。
In addition, considering a lot of household products made of various plastic materials, modern hard surface cleaners also require protection and safety for surfaces.
此外，考虑到大量的家用产品是由各种塑料制成的，现代硬表面清洗剂也要求对表面安全并具有保护效果。
In addition, considering a lot of household products made of various plastic materials, modern hard surface cleaners also require protection and safety for surfaces.
此外，考虑到大量的家用产品是由各种塑料制成的，现代硬表面清洗剂也要求对表面安全并具有保护效果。
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