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According to the VESs analysis, the intrinsic brittleness of Fe〓Al is due to less lattice electrons, bondcomplex distribution heterogeneity, hydrogen-induced embrittlement, and the difficulty in recovery of the lattice symmetry, while various alloying elements have strengthening and toughening effects through altering the VES parameters.

运用固体与分子经验电子理论建立起Fe〓Al合金各相的价电子结构,在计算中,首次尝试利用TFD模型确定Fe〓Al的原子杂阶,针对不完全有序的B2-Fe〓Al提出"局部平均原子模型",对Fe〓Al的室温脆性从电子理论上进行了系统的阐述,认为较少的晶格电子、键络分布不均匀、氢致脆性和难以恢复晶体的对称性使Fe〓Al具有本质脆性,合金化元素可以在一定程度上改变价电子结构参数而改善强度和韧性。

Surface-modified lead iodide nanorods were synthesized by one-step room temperature solid-state reaction of lead nitrate with potassium iodide in the presence of a nonionic surfactant, polyethyl- ene glycol.

以硝酸铅和碘化钾为原料,在体系中添加表面活性剂聚乙二醇,采用一步室温固相化学反应制备出聚乙二醇表面修饰的碘化铅纳米棒,利用X射线衍射,红外光谱,透射电子显微镜,扫描电子显微镜,热分析和元素分析等手段对其进行了表征。

When the temperature gets too warm, the normal room temperature in Singapore climate at about 28°C - 30°C, this moss get 'leggy' and the growth pattern looks very similar to Java Moss.

当温度得到太多温暖,正常室温条件下在新加坡的气候在28 ℃-3 0℃,这青苔获得'长腿'和增长方式看起来非常类似的J ava莫斯。

If you have special places to swim, for example, is亲子园or hospital that is the best, if at home, first of all you have to buy a swimming pool what a life buoy, and then need a lot a lot of water, but also to maintain room temperature of 28 degrees, very difficult ah.

如果有专门游泳的地方,比如是亲子园或者是医院那是最好了,如果在家里面,首先你要买游泳池还有救生圈什么的,然后需要很多很多的水,还要保持室温28度,很困难啊。

Room-temperature ionic liquids, as a class of green materials developed in recent years, have important applications in the area of dissolution and separation of lignocellulose.

室温离子液体是近年来出现的一类绿色材料,对溶解和分离木质纤维素具有广阔的应用前景。

XPS measurement revealed that the shoulder peak relative to metal Lils, this result is confirmed by HREELS measurements.

对在几种条件下LiF和Al的化学反应的研究表明:在有Alq〓参与的情况下,LiF和Al在室温下发生反应。

The results show that the SiO_(2) layer can reduce the direct contact between LiMn_(2)O_(4) and the electrolyte,and thus effectively suppress the undesirable interactions between them at.

我们按照流变相反应法[10]合成了LiMn2O4,发现该材料在室温下有良好的电化学性能,但在较高温度如55℃时,材料性能急剧恶化,循环性能显著下降。

Note: On a warm day the room temperature may be at or above the boiling point of limonene (ca 32 C).

注意:在和暖的日子里,室温可能会在或超过柠檬烯的沸点(大约32 C)。

The irradiation effects on the aggregate state and microstructure of Xinjiang long-staple cotton fiber were studied by solid state 13C CP/MAS NMR, 1H relaxation time measurements and ESR spectroscopy.

用13C CP/MAS NMR谱、ESR谱和质子弛豫时间等方法,研究了经γ射线在室温下辐照后新疆长绒棉纤维的辐射效应。

Leave the chocolate macaroon in room temperature until the surface become dry.

朱古力蛋白杏仁饼必须放在室温至表面乾身,才可入焗炉。

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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。