Casehardening involves a change of surface properties to produce ahard,wear-resistant shell about a tough,fracture-resistant core.

表面硬化包含一个高硬度、耐磨的壳及高的芯。

The RE(Y)-Mg-Si-Fe nodularizer had been used to cast heavy sectioned high ductile nodular iron cooling wall castings.

应用钇基重稀土镁复合球化剂，铸造厚大断面高球铁冷却壁，成功地获得了铸件中心部位铸态高能。

Good toughness and thermal cracking resistance.Used in the stands of prefinish rolling.Suitable for hot rolling thread steel.

具有优良的和抗热烈纹能力,适用于预精轧机架和热轧螺纹钢.

What the team discovered is that the key to the hoverfly’s successful hovering is the flexibility of its wings.

这个小组所发现的是，食蚜虻在空间成功悬停的关键是牠的翼的柔。

Glass fiber is used to reinforce material for increasing toughness, flexural strength, and tensibility in unsaturated polymer modified concrete.

纤维则是作为强化材,增加水泥浆体的及抗弯、抗拉等机械质。

The toughness may be well improved by postheat treatment which is large in energy consumption and long in working period.

焊后热处理可地改善焊接接头的，但存在耗能大、工时长等问题。

Characteristics of plastic deformation of stress minerals in veins, such as subgrain tectonics, deformation, lamellae and deformation bands, can be found.

金矿的形成富集与剪切带多期(次)活动密切相关，尤其是脆变形期。

It is shown that the fracture properties are determined by materials strength before tufftride process and by materials toughness after tufftride process.

疲劳最后断裂质取决于材料的强度和。

Results To be overweight and superfatted is universal phenomena about midlife in-service cadre,which cause weak heart and lung and renitent muscle and ligamenta of waist.

结果超重及脂肪含量超标是中年在职干部普遍存在的问题,由此导致心肺能力下降、腰部肌肉和带的柔降低等一系列问题。

Based on the macroscopic characteristics, microstructure and fabric of the tectonite in the Yingxin fault zone,this paper proves that there are two types of tectonite, i.

依据龙门山中段映秀断裂带构造岩的宏观地质特征、显微构造及组构特征，论证了构造岩具有脆和两大类型，形成序次上为先后脆。

In the ductile shear belt,the alteration and zonation of tectonite and wall rock are obviously,and miliolite belt,quartz,iron pyrite,ankerite alteration belt and gold mineralization belt are trinity.

剪切带内构造岩、围岩蚀变分带明显,并具有典型的“(超)糜棱岩—石英、黄铁矿、铁白云石化—金矿化”等“三位一体”成矿特征。

The PP armchair produced by this special compound has a good impact resistance, high strength, good ageing resistance, good corrosion resistance and dimensional stability and good lighteness.

用该专用料生产的方椅具有强度高、、耐老化、耐腐蚀、尺寸稳定、表面光亮等优点,现已批量生产。

It is proved that the pressmark of tooth root, the state of carbide and remanentelements in the material have different effects on the toughness of POwer hacksaw blades.

结果证明，机用锯条的分齿压痕、基体碳化物状况及材料中的残存元素等对机用锯条的有不同程度的影响。

Don't underdo it.This doesn't mean you just sit whenever the whim strikes you.It means you set up a practice schedule and keep to it with a gentle, patient tenacity.

这不是说，你只是随心所欲的静坐，而是建立一个练习计划，然后一种温柔但又的坚持。

Results showed that the flexual strength and the flexual toughness index of UHPC become more than 2 times and 10 times respectively of those 0f the matrix concrete by the reinforcement of fibers.

结果表明通过纤维的增强和增作用，超高能混凝土的抗弯强度和弯曲指数分别提高到2倍和10倍上。