查询词典 plastics

The phenol resins and plastics were the original synthetic thermosetting materials.

酚树脂和塑料是原始的热硬化性合成材料。

Is a private joint-stock enterprises, the main business is specialized in various kinds of thermosetting phenolic plastics and plastic products processing.

公司简介上海山合塑料制品有限公司是股份制民营企业，主营业务是专业从事各类热固性酚醛塑料和塑料制品加工。

The influences of additional pressure losses at the entrance and the wall-slip velocity caused by the viscoelasticity of rubber on the process of filling were studied on the basis of injection molding of plastics, and a mathematical model of filling flow in the thin rectangular for rubber was set up.

借鉴塑料熔融注射技术，研究了胶料粘弹性引起的入口附加压力降和固体壁面滑移速度对充模过程的影响，从而建立了橡胶在薄矩形模腔内充模流动的数学模型。

In reaction-injection moldinga mixture of two or more reactive fluids is forced under high pressure into the mold cavity.Chemical reactions take place in the mold rapidly and the polymer solidifies.Various fibers such as glass,graphite,or boron may also be used to reinforce the materials.Structural foams are also produced by a similar methodusing an inert gasand resin mixture.The product consists of a rigid cellular(closed-cell)structure with a continuous solid skin as muchas 0.080 in.(2mm)in thickness.There are several methods for forming structural foams with density reductions as much as 40% from the solid structure.Because stiffness is proportional to the third power of the thickness of a part,for the same weight of material used,cellular structures are stiffer than solid plastics or metals.

在反应注射成型所夹杂的两个或两个以上的接触过程中，被迫在高压下进入模具cavity.chemical反应发生在模具迅速和聚合物solidifies.various纤维如玻璃，石墨，或硼可能也可以用来加强materials.structural泡沫也产生类似的方法利用惰性气体和树脂mixture.the产品构成的一个硬性蜂窝的结构与连续性固皮肤作为留言Muchas 0.080英寸（ 2毫米），在thickness.there有几种方法，形成结构性的泡沫密度减少了四成之多，从固体structure.because刚度成正比第三力量厚度的一部分，为同样重量的使用材料，蜂窝结构更为严厉的比硬塑料或金属。

Sundlof said the FDA found an amount of melamine, a chemical used in the production of plastics and fertilizer,"10 thousand-fold less than the amounts associated with the Chinese infant formula contamination."

孙德夫说，美国食品和药品管理局发现少量的三聚氰胺是"同类中国奶粉的万分之一。"三聚氰胺常被用于生产塑料和化肥。

The company is one of the specialized manufacturers of precise screw, barrel, tie bar and other accessories of plastics machinery.

在原有的基础上不断推陈出新，引进国际先进的技术，精良的生产设备与高性能的材料。

"Modern materials, including stainless steel and plastics, have replaced tinplate in many common applications."

现在所用的不锈钢和塑料的材料已经逐步代替镀锡钢板而被普遍使用。

Application and development trends of titanium dioxide in China plastics industry

二、钛白粉在中国塑料行业中应用发展趋势2。

The main products are: Toilet seat ring and cover, water tank fittings, bathroom rack, bathroom mirrors and a variety of matching bathroom supplies, combination cabinets, household plastic products, and undertook a variety of engineering plastics processing customer parts and plastic mold.

主要产品有：座便器坐圈和盖，水箱配件，浴室挂具，浴室镜及各种浴室配套用品，组合柜，日用塑料制品，并承接客户加工各种工程塑料配件和塑料模具。

Consider, too, John Trani, who in 1997 left a long career at GE Plastics for toolmaker and hardware manufacturer Stanley Works.

考虑，也约翰特拉尼，他在1997年离开了漫长生涯通用塑料工具和硬件制造士丹利工程。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷