不磨的

For the all classes of dies, if we analyse the fluctuate, tendency of increase and decrease and law which appeared in the die's whole life, we will find that the master of the error are changeless; the error that because the abrade of the cutter and impression will be as the cutter grinding times increased at the same time. And that will cause the error oversize gradually; and also have another part error are unconventional , unforeseen.

对各类冲模冲件误差在冲模整个寿命中出现的波动、增减趋向及规律等进行全面分析便可发现：冲件误差的主导部分是不变的；因刃口或型腔的自然磨损而出现的误差增量随冲模刃磨冲数增加而使这部分误差逐渐加大；还有部分误差的增量是非常规的、不可预见的。

Engine, this paper found out that the antigalling abilities for parts being tested although quite smooth, even with quenched and ground surfaces were not too high, while the antigalling abilities were quite higher for those surfaces more rougher than the former but possess fairly big negative contour skewness RSK and considerable large mean spacing Sm of profile micro-inequality.

本文通过SRV 试验、Timken 试验和发动机挺杆的台架试验，发现了试件尽管很光滑，甚至是淬硬后精磨的表面的抗擦伤能力并不高，而粗糙度比前者高，但具有相当大的负轮廓偏斜度Rsk ，且具有相当大的轮廓微观不平度平均间距Sm 的表面具有较高的抗擦伤能力，这是由于它们具有较好支承面及众多"微油池"有利于润滑的结果。

Pearson product moment correlation coefficients were used to analyze the effect of the age, cranial length and maxillary length on the molar's location in the maxilla.

但是后续的实验研究表明，上颌第一恒磨牙的位置并不是固定不变的，它会随着牙弓内、外因素的变化而发生位置的变化，影响错畸形的形成[1]。

In this paper, reciprocal theorem methodis generalized to solve the problem of bending of thick rectangular plates under uniformly distributed load based on Reissner s theory.

功的互等定理功的互等定理"不成功"的模仿功的互等定律功的互等定理功的互等定理。功的互等的贝蒂定理修正的功的互等定理铁水含硅量磨削微粒

There was once a little girl who was very pretty and delicate, but in summer she was forced to run about with bare feet, she was so poor, and in winter wear very large wooden shoes, which made her little insteps quite red, and that looked so dangerous!

从前有一个小女孩——一个非常可爱的、漂亮的小女孩。不过她夏天得打着一双赤脚走路，因为她很贫穷。冬天她拖着一双沉重的木鞋，脚背都给磨红了，这是很不好受的。

There was once a little girl who was very pretty and delicate, but in summer she was forced to run about with bare feet, she was so poor, and in winterwear very large wooden shoes, which made her little insteps quite red, andthat looked so dangerous!

从前有一个小女孩一个非常可爱的、漂亮的小女孩。不过她夏天得打著一双赤脚走路，因为她很贫穷。冬天她拖著一双沉重的木鞋，脚背都给磨红了，这是很不好受的。

There was once a little girl who was very pretty and delicate, but in summer she was forced to run about with bare feet, she was so poor, and in winterwear very large wooden shoes, which made her little insteps quite red, andthat looked so dangerous!

红鞋从前有一个小女孩——一个非常可爱的、漂亮的小女孩。不过她夏天得打着一双赤脚走路，因为她很贫穷。冬天她拖着一双沉重的木鞋，脚背都给磨红了，这是很不好受的。

There was once a little girl who was very pretty and delicate, but in summer she was forced to run about with bare feet, she was so poor, and in winterwear very large wooden shoes, which made her little insteps quite red, andthat looked so dangerous!

从前有一个小女孩——一个非常可爱的、漂亮的小女孩。不过她夏天得打着一双赤脚走路，因为她很贫穷。冬天她拖着一双沉重的木鞋，脚背都给磨红了，这是很不好受的。

THE RED SHOES There was once a little girl who was very pretty and delicate, but in summer she was forced to run about with bare feet, she was so poor, and in winterwear very large wooden shoes, which made her little insteps quite red, andthat looked so d

从前有一个小女孩--一个非常可爱的、漂亮的小女孩。不过她夏天得打着一双赤脚走路，因为她很贫穷。冬天她拖着一双沉重的木鞋，脚背都给磨红了，这是很不好受的。

In comparison with the sample directly sintered at 650 ℃＜TN, an interesting, irreversible transformation in the crystal structure of the MgB2 phase is observed with the sample going through the stages of initial sintering at 750 ℃, then re-sintering at 650 ℃ in an Mg-rich environment after the processes of regrinding and pressing.

把直接在650 ℃＜T N，烧结的样品与先在750 ℃下烧结，之后又再次重磨和处理后，并于富镁的环境中在650 ℃下再烧结处理的样品相比较，观察到了MgB2的不可逆的晶体结构转变。

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。