下延的

In this paper, taking the downward continuation of potential field as an inverse problem of upward continuation, we obtain a convolution type linear integral equation for downward continuation. Making use of the orthogonal symmetry characteristic of Fourier transform matrix, and combining the principles of singular value decomposition of matrix and generalized inverse, we proposed a stable generalized inverse method for downward continuation of potential field, called wavenumber domain generalized inverse algorithm, which doesn't need the computation for inverse matrix. It resolves the instability of potential field downward continuation of large depth.

本文通过把位场向下延拓视为向上延拓的反问题，得到向下延拓的褶积型线性积分方程，再利用Fourier变换矩阵的正交对称特性，并结合矩阵的奇异值分解和广义逆原理，提出了一种稳定的不需要进行求逆运算的位场向下延拓广义逆方法——波数域广义逆算法，解决了位场大深度向下延拓的不稳定性问题。

A container closure formed from a synthetic resin as a single unit has a circular top panel wall and a cylindrical skirt wall extending downwardly from the peripheral edge of the top panel wall.

由合成树脂作为单件形成的容器封盖具有圆形的顶板壁和从此顶板壁的边缘下延的柱形裙壁。

Needles with basal sheath persistent and basal scalelike leaves decurrent, cross section with 2 vascular bundles; umbo dorsal.

针叶具基部鞘宿存和下延的基部鳞片状叶，横断面具维管束；鳞脐背侧。

Leaves undeveloped, tuberculate, ca. 1 mm, base convex, decurrent, adnate to branch, distally touching base of next higher leaf, apex obtuse; leaves of branchlets sheathing and amplexicaul at base.

不发达的叶，具瘤，约1毫米，凸，下延的基部，贴生于分枝，上部与上面的临近叶的基部接触，先端钝；小枝具鞘和抱茎的在基部的叶。

Leaves not decurrent at base; petioles not winged.

叶而不是下延的在基部；叶柄无翅。

Filaments inserted at lower part of corolla tube, decurrent part oblong, not pubescent.

在花冠筒，下延的深裂的长圆形的下半部分着生的花丝，并非短柔毛。

Roots yellowish to grayish white; leaf base usually not decurrent to petiole

根淡黄到带灰色白色；叶基部通常不下延的至叶柄 52

Leaves decurrent at base; petioles winged.

叶下延的在基部；叶柄具翅 84

Basal leaves basally decurrent along petiole, forming wings or slightly decurrent.

沿着叶柄下延的基部的基生叶，形成翅或稍下延。

Filaments connate; anthers very large, decurrent to base of column, apex acuminate; pollinia 2 per pollinarium, slender, falcate, pendulous.

花丝合生花药柱状，先端渐尖的非常大，下延的至基部；花粉块2 每pollinarium，纤巧，镰刀形，下垂。

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。