六个

Lanthanides belong to the sixth cycle of the periodic table Ⅲ B family, are all solid metal, they are La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, holmium, erbium, thulium, ytterbium, and lutetium were 15 kinds of metals and their periphery are two layers of electronic 5d16s2, while the peripheral third layer f orbital but never zero to 14, so the external electronic structure of 4f0-145d16s2, and therefore these elements in oxidation number are to 3, very close chemical properties, extraction, when it is difficult to separate them they are mostly multi-element mineral mix, more difficult to increase refining, and their atomic number of 57-71, one by one to increase the number of protons the nucleus, and thus extranuclear electron of gravity is also growing, so that atomic radius decreases with increasing atomic number Z, which makes lanthanides contraction, ionic radius is also reduced, which also makes Zr, Hf, Nb and Ta, Mo and W, the atom and ionic radius very close to each other they also determine a similar nature, resulting in difficult separation, also the tribe Ⅷ of the fifth cycle, ruthenium, rhodium, palladium, and the sixth cycle, osmium, iridium, platinum is very similar in nature, thus The six elements, said platinum group elements.

镧系元素属于周期表第六周期中ⅢB族，全部是固体金属，它们是镧、铈、镨、钕、钷、钐、铕、钆、铽、镝、钬、铒、铥、镱和镥共十五种金属元素，它们的外围两层的电子均是5d16s2，而外围第三层的f轨道电子却从零增加到14个，所以外围电子结构为4f0－145d16s2，而使这些元素氧化数均为＋3，化学性质极为接近，提炼时很难分开，它们的矿石又大多是多种元素混在一起的，更增加提纯难度，它们的原子序数为57－71，核内质子数逐个增加，因而对核外电子引力也不断增强，使原子半径随原子序数Z增加而减小，这就使镧系元素收缩、离子半径也缩小，这也使得Zr和Hf，Nb和Ta、Mo和W等原子和离子半径都很接近、也决定了它们彼此性质类似，以致难以分离、也使第Ⅷ族中第五周期的钌、铑、钯和第六周期的锇、铱、铂在性质上极为相似，因而称这六个元素为铂系元素。

His Logic is divided into nine parts, of which the first is an introduction after the manner of Porphyry's "Isagoge"; then follow the six parts corresponding to the six treatises composing the "Organon"; the eighth and ninth parts consists respectively of treatises on rhetoric and poetry.

他的逻辑是，分为九个部分，其中第一个是引进后的方式斑岩的" isagoge "，然后沿着共分六个部分，相对应的六个论文撰写的"欧加农"；第八和第九部分组成，分别就论文修辞学和诗歌。

Ford Motor Credit states that 45 % of its recent lendings has been for sixty months,rather than the sixty-six-month period that was usual before.

福特汽车信贷部门发表声明，其近期贷款的 45%为六十六个月还款期，而以前通常为六十个月。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on Pat and Liz Moynihan's beautiful farm and 62 counties, 16 months, 3 debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

希拉里。克林顿大家知道，我们是在七月的一个阳光灿烂的早上，从帕特和丽兹·莫伊尼汉的美丽农场的宾德角开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。终于在你们的支持下，我们站在了这里。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on Pat and Liz Moynihan's beautiful farm and 62 counties, 16 months, 3 debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

大家知道，我们是在七月的一个阳光灿烂的早上，从帕特和丽兹·莫伊尼汉的美丽农场的宾德角开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on Pat and Liz Moynihan's beautiful farm.

大家知道，我们是在七月的一个阳光灿烂的早上，从帕特和丽兹·莫伊尼汉的美丽农场的宾德角开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on Pat and Liz Moynihan's beautiful farm and 62 counties, 16 months, 3 debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

大家知道，我们是在七月的一个阳光灿烂的早上，从帕特和丽兹·莫伊尼汉的美丽农场的频德角开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。终于在你们的支持下，我们站在了这里。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on pat and Liz Monahan's beautiful farm and 62 counties, 16 months, 3 debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

莫伊尼汉夫妇位于频德角的美丽农场开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。

You know, you know, we started this great effort on a sunny July morning in Pinders Corner on Pat and Liz Moynihan's beautiful farm and 62 counties, 16 months, 3 debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

莫伊尼汉的美丽农场的频德角开始迈出了这艰难的一步，然后辗转六十二个县，历经过十六个月、三场辩论，打败了两个竞争对手，穿破六套黑色便服。

You know, you know, we started this great effort on a sunny July morning in Pin-ders Corner on Pat and Liz Moynihan's beautiful farm and 62 counties, 16 months, 3debates, 2 opponents, and 6 black pantsuits later, because of you, here we are.

大家都知道，我们是在七月的一个阳光明媚的清晨，于帕特和丽兹·莫伊尼汉所属的一座美丽农场频德角迈出了最艰难的一步，从此我们辗转六十二个县，历时十六个月，并通过三场辩论击败了两位竞争对手，甚至还穿坏了六套黑色礼服，才最终在大家的共同努力下站在这里。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。