查询词典 U-steel

Similarly like in delay differential equations case we obtain recurrence relation of the form 〓, where U〓∈〓 and B∈〓.

与延迟微分方程的分析相类似，我们可以得到迭代关系式〓，其中U〓∈〓且B∈〓。

Application of linear multistep methods to the delay differential equation of the form y′(t =ay +by , t≥0, y =g ,-τ≤t≤0, with a, b∈〓 and b≠a yields the recurrence relation of the form〓, where U〓∈〓 and B∈〓.

将线性多步方法应用到延迟微分方程y′=ay+by，t≥0，y=g，-τ≤t≤0，其中a，b∈〓且b≠a上，产生迭代关系式〓，其中U〓∈〓并且B∈〓。

It was anticipated that more than 50% of ash and the hazardous elements As, Co, Cr, Cu, Hg, Mn and more than 30% of sulfur in most coal would be routinely removed by physical coal cleaning procedures, however, the removability of other hazardous elements Ba, Be, Cd, Cl, Mo, Ni, P, Pb, Sb, Se, Th, U, V and Zn displayed relatively lower or a wide range of variation.

结果表明：物理洗选不但能降低煤中的灰分与硫分，还能不同程度地脱除煤中有害微量元素；预测在物理洗选过程中，多数煤中灰分以及有害微量元素As、Co、Cu、Cr、Hg与Mn的脱除率大于50％，硫分的脱除率大于30％，其它有害微量元素Ba、Be、Cd、Cl、Mo、Ni、P、Pb、Sb、Se、Th、U、V与Zn的脱除率相对较低或表现出一个宽的变化范围。

The only three words in the English language to have 2 consecutive u's is vacuum, residuum, and continuum.

英语只有三个含两个连续u的单词，真空、残余和连续。

Using peculiar horn-shaped antennas, U-2 wrecker planes, satellites and particle accelerators, scientists hit tardily pieced unitedly the cosmogenic jigsaw, and this movie charts the resistless grounds for a aggregation created by a Big Bang.

使用新奇的角状天线，U-2间谍飞机，卫星和粒子加速器，科学家们渐渐拼织出了宇宙理论，本纪录片为您展示支持"创世宇宙大爆炸"理论的压倒性证据。

Influence of environmental factors on photosynthetic physiologic indexes and water use efficiency of winter wheat leaves was studied in semi-arid rain feed agriculture region in Loess Plateau. Diurnal fluctuation of physiological rate of leaf was a not obvious two-hump curve and diurnal fluctuation of transpiration rate was a typical resupinate "U" and the Pn and Tr in a.m.

通过对黄土旱塬冬小麦叶片光合生理指标、水分利用效率及其对环境因子的响应进行分析，结果表明：净光合速率日变化呈不明显的双峰曲线，蒸腾速率日变化呈明显的倒"U"型曲线，两者上午都明显高于下午，且不同生育期峰值出现的时间不同。

In 1986, H. Gauchman proved another famous rigidity theorem for compact minimal submanifolds in a sphere: Let M be an n-dimensional compact minimal subman-ifold in S~(1), if σ≤ 1/3 holds for any unit vector u ∈ UM, then either σ≡ 0, i.e..

若对任意单位切向量u∈UM，有σ≤1／3，其中σ=‖h‖~2，则σ≡0，即M是全测地子流形；或者σ≡1／3，并且要完全确定这类极小子流形的几何结构。

The Nissan Pixo's unique design elements include the front end styling, which features the Nissan family double-deck six slot grille either side of a centre U-shaped section housing the Nissan roundel.

设计 日产Pixo的独特的设计元素包括前端造型，它采用了日产家庭双层6槽格栅任何一方的一个中心，U形部分房屋的日产圆物。

The paper studies the auto-covariance estimation of Gamma distribution by using the asymptotic behavior of student U -statistic,gives the large sample interval estimation for the scale parameter,and carries out the computing simulation according to the method of random simulation.

利用学生氏U－统计量的渐近性质，研究伽玛分布的自协方差估计，同时给出了尺度参数的大样本区间估计，并采用随机模拟的方法进行计算模拟

Moreover,we study the sample support of homoge-neous O-U superprocess,and prove that the sample of this process canbe supported on a Hilbert subspace of the Schwartz space of tempereddistributions.

进而，讨论时齐O-U超过程的轨道支撑，证明了该过程的轨道可支撑于Schwartz分布空间的某个Hilbert子空间（定理1.9）。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。