查询词典 sharpener pencil sharpener

Is this a mechanical pencil or a ballpoint pen?

这枝是自动铅笔还是原子笔？

In this paper, an extended divide and conquer algorithm is intended proposed, which is for solving the real symmetric band generalized eigenvalue problem under distributing environment Eigenvalue partition theorem is presented and proved Based on divide and conquer by extension, this algorithm computes generalized eigenpaires of symmetric band matrix pencil by bisection and generalized Rayleigh quotient iteration Theoretic analysis and numerical results show that this algorithm is better than the classic software package LAPACK when bandwidth is small and the scale is large Combined with multisection, which has good parallelism, it got good effects under distributed environments

提出了分布式环境下计算对称带状广义特征值问题的一种扩展分治算法，给出了特征值分割定理及其证明算法在扩展分治的基础上，利用二分压缩结合广义Rayleigh商迭代计算广义特征对理论分析和数值实验表明，对于窄带宽大规模的广义特征值问题，该分治算法明显优于LAPACK软件包结合并行性好的多分法，在分布式环境下获得了很好的并行效果1 引言本文研究了对称带状广义特征值问题Ax =λBx ( 1)的并行计算，其中，A ，B均为半带宽为r的n阶实对称带状矩阵且其中之一是正定的本文总假设B是正定的求解此问题有两种传统方法，第1种方法是通过计算矩阵B的Cholesky分解，将问题( 1)转化为标准特征值问题[1～3] ，进一步

Due to excessive exploitation over many years,the amount of basswood cannot meet the great demand of pencil production any longer.

由于长期过度的开采，极木已不能满足铅笔生产的巨大需求。

As basswood is smooth and easy to cut,it is commonly used in pencil manufactories to make lead holders. For 7 billion pencils 3 million basses will be cut down a year.

由于极木具有木材细致、容易切削的特点，目前生产制作铅笔的厂家都以极木做笔杆材料。70亿支铅笔就意味着每年有300万株天然优质根木遭砍伐。

Whether it's a pin or a battleship, it is first rendered with a pencil.

因为8 Tt t 8。 com 一个智者曾经这样评述"一切都开始于一支铅笔，无论它是一个别针还是一艘战舰，它的第一个表述都来自一支铅笔。"

With the development and popularization of Internet/Intranet, conventional examination based on paper and pencil will be substituted for computerized one.

Internet/Intranet技术的发展和普及，计算机化考试在许多方面将逐步取代传统的基于纸笔的考试。

Before computerization of Bell System records in the 1980s, this information was handwritten in pencil in accounting ledger books.

在1980年代贝尔系统的记录系统电脑化之前，这些信息是用铅笔写在账本上的。

Hybrid\|pencil beam model,which has been obtained by embedding the bipartition model into Fermi\|Eyges multiple\|scattering theory,shows the potential broad prospect in clinic because of the good calculation accuracy and efficiency.

将双群模型计算的宽束电子的能量沉积与Fermi Eyges理论的侧向解相结合来构造电子笔束模型，即混合笔束模型。

Hybrid\\|pencil beam model,which has been obtained by embedding the bipartition model into Fermi\\|Eyges multiple\\|scattering theory,shows the potential broad prospect in clinic because of the good calculation accuracy and efficiency.

d+ k$？' o1 |将双群模型计算的宽束电子的能量沉积与Fermi Eyges理论的侧向解相结合来构造电子笔束模型，即混合笔束模型。由于混合笔束模型的计算精度和效率较好，并且适用范围较大，因此，混合笔束模型展示了在放射治疗临床应用上的可能性。

You may write in biro or pencil.

你用圆珠笔或铅笔书写均可。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。