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According to differentiable manifolds theory, the paper discusses tile Legendre transformation of the Pfaffian form, introdues the operator of the Legendre transformation, derives the relation between the Legendre transformation and the partial differentiation and proves three law s.

从微分流形理论出发，讨论了Pfaff形式的勒让德变换；引入了勒让德变换算子；给出了勒让德变换与偏微商的关系；证明了两个定理和一个引理。

Despite ready access to the sea food, Liguria's best-known food is land-based in origin. Focaccia, the locals' answer to pizza, is right-angled cuts of tasty bread made with little more than flour, salt, olive oil and a few extras than vary depending on which town along the Italian Riviera you visit. The tastiest type hails from Recco, where Stracchino cheese ( Stracchino is a type of Italian cheese, typical of Lombardy which derives from the Italian word "stracca", meaning "tired". It is said that the milk from tired cows is richer in fats and more acidic. It is eaten very young, has a soft, creamy texture and normally a mild and delicate flavour. It is normally square in form.) gets sandwiched between two layers of bread and then served piping hot. Those not keen on stand-up lunches among the sun-lotioned throngs have plenty of alternatives though as rustic eateries are plentiful around Santa Margherita Ligure.

在乐乔亚区虽然海产唾手可食，可是最吸引人的美食还是当地类似 Pizza 整齐切片的 Focaccia 面包，口味与配料延著义大利 Riviera 地区而异，主要是由面粉、盐、橄榄油与洋葱等额外配料烤成，最美味的是来自 Genova 省 Recco 区的 Stracchino 起司夹心热三明治( Stracchino 起司是 Lombardy 地区的典型起司，Stracchino 源自义大利文"stracca"，原意是疲倦，产自疲倦乳牛的牛乳据闻更富脂肪与酸性；趁鲜食用，乳脂柔软富香气，以块状包装)，它并非渴望在艳阳下囫囵吞枣的五脏庙祭品，但环绕 Santa Margherita Ligure 地区却有许多乡间小馆可让大家选择。

The paper studies UFLS with several times accelerating shedding load function, analyzes dynamic frequency characteristic of power system during UFLS, derives the formula which is served as setting rate of frequency change for criterion of accelerating shedding load, and designs the logical diagram expressing UFLS operation.

研究了同时依据频率和频率变化率两个变量，在每个频率定值处设置加速减载功能的低频减载方案。文中详细分析了低频减载过程中频率的动态特性，推导了作为加速减载判据的频率变化率整定值的计算公式。

The naissance of music derives from the connection of urgent needs of human beings and microcosm and macrocosm.

它是在人类迫切要求与微观世界和宏观世界取得联系的过程中诞生的。音乐对人类的影响和作用也是前所未有的。

Using concept of magnetic Polaris, this paper derives read-back signal of heads, and computes influence impacted on read-back signal by adjacent bit magnetic transitions and adjacent track magnetic transitions.

采用磁偶极子概念对磁头的读出信号进行了数学推导，并计算了相邻比特磁化翻转及相邻磁道磁化翻转对读出信号的影响。

As to make the issue that derives commodity, ansidade of 33 years old says: I do me to like to do, and if it accords with the feeling of Achewood type, then it is the join reader, the main chance that rolls out a product.

至于打造衍生商品的问题，33岁的安斯塔德说："我就做我喜欢做的，而且它如果符合Achewood式的感觉，那它就是连接读者、推出产品的好机会。"

Although the region's name derives from the Oglala Sioux words mako sica or

虽然该区域的名称得自奥格拉拉苏人的话语或

Functional maladjustment derives from the restriction of political structure, economic environment and cultural thought in the society, the defects in the educational management of the government, and the deficiency of higher education in the aspects of thought and structure.

功能失调的根源在于社会环境中政治体制、经济环境和文化观念等方面的制约，政府在高等教育管理中的缺陷，以及高等教育自身在观念、结构等方面的不足。

From the perspective of matter wave in quantum mechanics, this paper, by describing the wave function of microcosmic particle and using probability wave, derives the distributive regularity of light intensity of the single slit diffraction and circular aperture diffraction.

光具有波粒二象性，从量子力学的物质波出发，利用描述微观粒子的波函数，采用几率波的方法，导出光的单缝衍射和圆孔衍射的光强分布规律，所得结果与波动光学中用惠更新－菲涅耳原理得到的结果一致。

The small Portuguese element in the vocabulary of Mauritian creole derives rather from the Portuguese element in European maritime jargons (such as Sabir and Lingua Franca) or from enslaved Africans or Asians who came from areas where Portuguese was used as a trade language.

毛里裘斯克里奥耳语词汇中的少量

The operating temperature range of the proton beam windows of future liquid metal spallation sources will be lower than that of the first wall of a fusion reactor.

操作温度范围内的质子束窗未来液态金属裂源将低于对第一壁的聚变反应堆。

A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.

摘要在各向异性条件下，讨论了双曲型方程的一类非协调有限元逼近，给出了半离散格式下的最优误差佑计。