Oil harms birds and Marine mammals by causing feathers and fur to lose their natural waterproof quality, which causes the animals to drown or die of cold.
原油使鸟类和海洋哺乳动物的羽毛和毛皮失去了自然的防水能力，结果导致动物淹死或冻死。
Form and dimension may also be achieved by a number of alternative processes such as hot or cold extrusion, sand casting, die casting, and precision casting.
形式和尺寸也可以通过其它一些可选工艺来达到，比如热挤出或冷挤出加工，沙模铸造，拉模铸造，或精密铸造。
Cold compaction ensures that the as-compacted, or "green", component is dimensionally very accurate, as it is moulded precisely to the size and shape of the die.
冷挤压能保证被压制或“未加工”的零件尺寸十分精确，因为它被精确地按模具的尺寸和形状成型。
The forming process by cold extrusion for the hood pedestal of the auto air_conditioner compressor and the design of the cold extruding die were introduced.
介绍了车用空调压缩机罩体支架的冷挤压成形工艺及冷挤压模具设计，采用工艺试验的方法确定挤压坯料尺寸。
The cold stamping technology and die of two size range of dust cover were compared, there were some guidance roles on production.
对两种尺寸范围的防尘盖的冷冲压工艺及模具进行了对比分析，对生产具有一定指导作用。
It is shown by tests that the criterion can be used to predict cracking of metal cold forging, and to guide cold forging processes development and die adjustment.
试验验证结果表明，该准则可用于金属冷锻成型的破裂预测，并可指导冷锻成型工艺的编制及模具的调试。
Die pressing process and cold isostatic pressing process are the important methods of making ceramic parts.
陶瓷粉末干压成型和冷等静压成型是制备陶瓷结构部件的重要方法。
The effect of blank quality in cold extrusion on the damage way and service life of working parts (mould and die)is analysed, and some countermeasures presented.
分析了冷挤压毛坯质量对模具的工作部分（上、下凸模和凹模）的损坏形式和寿命的影响，指出了保证毛坯质量应采取的措施。
Taking an actual part as an example, the design and manufacture method of the cold extruding die and the warm extruding die were introduced.
以一具体零件为例，介绍了冷挤压模具和温挤压模具的设计及加工方法。
The forming process, die design and some manufacturing main points in cold extrusion of piston pins are presented in this paper.
介绍了活塞销冷挤压的生产工艺、模具设计及制造特点。
Cold upset female die of fillister head is the key mold in the manufacturing process of heading bolt.
冷镦圆头凹模是冷镦螺栓生产过程中的关键模具。
The quick phosphatizing method of cold extruding die parts and its defects, as well as the solving methods are introduced respectively.
介绍了冷挤压模具零件的快速磷化方法及其缺陷分析与改进措施。
It introduced the merit and method for applying cold extruding technology to produce upsetting die and also introduce the manufacturing process of representative upsetting die.
介绍了利用冷挤压技术生产冷镦模具的优点和方法，以及典型冷镦模具的制造过程。
The stress and the main failure form of the cold extruding die for the piston pins were analyzed.
分析了冷挤压活塞销凸模的受力情况和主要失效形式。
About 10 to 20 percent of the sea turtles washed ashore on Cape Cod beaches in the fall die because of the cold.
今年秋天在鳕鱼角海滩被冲上岸的海龟大约有10 - 20%因为寒冷死去。
The steel_bonded carbide GJW35is a new kind of hard die material, can be used to make not only cold work dies, but also hot work dies.
GJW35钢结硬质合金是一种新型硬质模具材料，可用于冷作模具，又可用于热作模具。
The cold extruding process for the special bolts was analyzed and calculated. And the structure of the cold extruding die used on stamping machines was introduced.
对专用螺栓的冷挤压工艺进行了分析和计算，并介绍冲床冷挤压模的结构。
If freezing damage were responsible for the decline, we would expect to see more trees die in the cold weather of the high elevations.
如果低温损害是数量减少的原因，那么我们可以推理在寒冷的高海拔地区树木死亡的要多。
The working process for cold extruding of valve-spring base has been described, with a new die structure using ejector turning of itself.
介绍了气门弹簧座的冷挤压工艺和新型模具结构。
This article introduced some methods of spline cold forming technology: forward die extrusion die forming, mud-rolls die extrusion forming, cold rolling forming and plate type cold rolling forming.
本文对花键整体凹模正挤工艺、多辊冷挤压成形工艺、冷滚轧成形工艺、平板齿条搓挤工艺等花键冷成形技术和特点进行介绍。
On the problem of open compression die emerged in production, the part is analyzed and a new processing method is put forward. Cold punching technology is replaced by cold extrusion technology.
针对敞开式压缩模在生产中出现的问题，对工件进行分析研究，提出新的工艺方法，以冷挤压工艺取代冷冲压工艺。
Core of large roller cold upsetting die made of ld steel has more ideal hardness, strength, anti wear capacity and impact toughness.
采用LD钢制造大型滚子冷镦模具的模芯，具有较理想的硬度、强度、耐磨性和冲击韧性。
The microstructure, properties and cracks of the fractured cold pressing die made of 45 steel were analyzed by optical microscope, scan electronic microscope and micro-hardness instrument.
采用光学显微镜、扫描电子显微镜、硬度机等对表面已开裂破损45钢冷冲模具的组织、性能和断口进行研究分析。
Properties and types of cold working die steel were summarized, and the disadvantages of traditional cold working die steels and advantages of new cold working die steels were put forward.
综述了冷作模具钢的性能及分类，指出了传统冷作模具钢的局限性和新型冷作模具钢的优势。
A new die-casting die fit on cold chamber die casting machine was redesigned in the part of the center gate and floating flow-distribution.
分析了录音机芯飞轮压铸模的原设计失败的原因，重新设计了用于冷室压铸机的中心浇口、浮动分流的压铸模。
This paper analysed the cold die forging technology of automotive epicyclic gears.
分析了汽车行星齿轮的冷模锻工艺。
The causes of crack for cold-working die are analyzed by checking machining technique and observing the microscopic structure, the technical measures to prevent cracks are put forwarded in the paper.
通过对弯曲件冷冲模各加工工艺和金相显微组织的分析，分析了冷冲模产生裂纹的原因，并提出了防止裂纹产生的工艺措施。
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
By virtue of modern metallograph analyse technology, the size of grain, hardness and residual stress of bevel gear by closed-die cold forging is studied.
借助现代冶金分析技术对闭塞冷锻行星齿轮的晶粒尺寸、硬度变化和残余应力分布规律进行了研究。
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