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The results show that: the tensile strength, flexural strength and flexural modulus increase by about 10.4%, 62.1% and 122.3% respectively when the mass fraction of the aluminum powder increases from 0 to 50%, while elongation at break and impact strength decrease by about 65.0 and 74.4% respectively; the tensile strength, elongation at break and impact strength all increase with decreasing the particle sizes of the aluminum powders.b Nylon-12 coated metal powders for the indirect SLS process were prepared by the dissolution precipitation process. The coated powders have only 1.0 wt% nylon-12, and their SLS green parts have sufficient strength for features as small as 1.0 mm to be built and post-processed and high dimensional accuracy. The green parts were subjected to the post processing processes including binder decomposition and infiltration of epoxy resin, and then the metal/polymer composite parts with relatively high strength and accuracy were formed.At present, micron-scale inorganic fillers have been widely used to reinforce nylon SLS parts.

将该法制备的尼龙12覆膜金属粉末用于以下两个方面：a使用铝粉增强尼龙12的SLS成形件，通过溶剂沉淀法制备尼龙12覆膜铝复合粉末，研究了铝粉含量及粒径对SLS成形件性能的影响，结果表明：铝粉分散均匀，并与基体有良好的界面粘接；当铝粉含量从0增加到50wt％时，成形件的拉伸强度、弯曲强度、弯曲模量分别提高10.4％、62.1％和122.3％，冲击强度和断裂伸长率下降65.0％和74.4％，耐热性及尺寸精度也得到提高；断裂伸长率、冲击强度及拉伸强度均随着铝粉粒径的减小而增大。b使用溶剂沉淀法制备了间接法SLS用尼龙12覆膜金属粉末，该覆膜粉末中聚合物粘接剂的含量仅为1.0 wt％，其SLS初始形坯具有较高的精度以及足够满足后处理要求的强度，最小精细结构的尺寸达1.0 mm。

On one hand,the plastic deformation of PA6 is restricted and restrained by glass fiber which can decrease the impact toughness of SGF-PA6;On the other hand,the debonding of fiber/matrix interface and the pulling-out of fiber can consume partial energy,so the impact toughness of SGF-PA6 can be improved.

另一方面，冲击断裂过程中的纤维/基体界面破坏和纤维拔出可吸收一部分能量(在断口分析中很少看到纤维的断裂，所以未考虑纤维断裂的影响)，这有增加复合材料冲击韧性的影响。

It shows that the crack energy of stable propagation measured by the impact-displacement curve reflects the quality of the toughness of the material and remedies the disadvantage evaluated by the total impact work.

指出，用冲击力-位移曲线测出的裂纹稳定扩展功的大小，反映了材料的韧性好坏，弥补了用冲击总功作评估的不足。

Apply to industrial worm gear lubrication. L-CKE compound for the worm oil, mainly for copper - a pair of steel-and two-cylinder, and other types of siege under light load, in a smooth drive without the impact of the worm, deputy. L-CKE / P worm extreme pressure for oil, mainly for copper - a pair of steel cylindrical heavy to bear, there is vibration in the transmission and impact of the worm, deputy.

适用于工业蜗轮蜗杆传动装置的润滑。L-CKE为复合型蜗轮蜗杆油，主要用于铜－钢配对的圆柱型和双包围等类型的承受轻负荷、传动中平稳无冲击的蜗轮蜗杆副。L-CKE/P为极压蜗轮蜗杆油，主要用于铜－钢配对的圆柱型承受重负荷，传动中有振动和冲击的蜗轮蜗杆副。

C. The main merit of this method is lessening the work to get temperature-impact curve at various temperature, and the impact test at only one temperature is necessary.

c。这种方法的优点在于减少了获得温度——冲击功曲线在每个温度做冲击试验的工作量，而只需在一个确定的温度做冲击试验即可。

Second, Taiwan Billiton Nadeschda environmental testing equipment:(self-produced self-marketing) Life expectancy button testing machine, tensile testing machine for electric, Sweep / low frequency / analog automotive vibration test rig, programmable temperature and humidity box, aging test chamber, salt spray testing machine, packaging / phone drop test units, load / plug wire bending test machine, measuring the rate of wire tester, rub tester wearable mobile phone, cell phone slider / clamshell test machine, 90 peel strength test machines, falling ball impact test machine, the breakdown strength test machine, drum drop test machine, plug line hoist swing tester, impact test chamber, combustion testing machine, standard light boxes, the frequency to avoid network rooms, projectors, video measuring instrument, fully automatic servo system plug test machine.

按键寿命试验机、电动拉力试验机、扫频/低频/模拟汽车振动试验台、可程式恒温恒湿箱、老化试验箱、盐雾试验机、包装/手机跌落试验台、负载/插头引线弯折试验机、线材测长率试验机、手机耐磨擦试验机、手机滑盖/翻盖试验机、90°剥离强度试验机、落球冲击试验机、破裂强度试验机、滚筒跌落试验机、插头线吊重摆动试验机、冲击试验箱、燃烧试验机、标准光源箱、频避网房、投影仪、影像测量仪、伺服系统全自动插拔力试验机等。

The impact of long-term effects, the discovery of human capital, wage income, government spending on these three variables the number of small and medium-sized start-up companies have a negative impact, in which to pay income in the three most affected

在长期的冲击效果下，发现人力资本、薪资所得、政府支出这三项变数对中小企业创业公司家数均有负面的影响，而在这三项中以薪资所得的影响最大

1 Bring displacement impact analysis for the orthogonal law surrounding rock mechanics parameters and initial tests to stress Quzhi changes will lead to varying degrees of influence displacement volume changes, we can make this change, as the parameters for the impact of displacement.

2.1 巷道位移影响度分析的正交试验法围岩力学参数和初始地应力取值的变化将会导致巷道位移量不同程度的变化，我们可以把这一变化，看作是各参数对位移的影响度。

Impact experiment equipment was used to study the dynamic mechanical properties and characterization method of a new kind of damping aluminum alloy under impact load.

采用冲击实验装置研究了新型阻尼铝合金材料在冲击载荷作用下的动态力学性能及表征方法。

While utilizing the time-temperature equivalent principle it has proposed the relation complex shearing: G* with driving speed: V, test temperature, and think the impact on high-temperature performance of asphalt mixture of temperature is greater than the impact on high-temperature performance of asphalt mixture of the driving speed.

利用时温等效原理提出了复数剪切模量G*与行车速度V、试验温度的关系，并认为温度对沥青混合料高温性能的影响大于行车速度对沥青混合料高温性能的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。