查询词典 pencil-box

A . There is a ball － pen and a pencil .

这里有一支圆珠笔和一支钢笔。

Is it a pen, a pencil or a ball-point pen?

它是钢笔，铅笔还是圆珠笔？

According to the type of pencils, look from exterior much like ordinary ball-point pen, pencil, it has the incomparable tradition.

据了解，该型号的铅笔从外观上看很像普通的圆珠笔，它具有传统铅笔无法比拟的卖点。

3Filed document script must be standard, specific, clear handwriting and written by ballpen and pencil is forbidden.

10.8.3归档文件资料底稿必须做到标准化、规格化、字迹清楚，禁止使用圆珠笔和铅笔书写

"I use a pencil at work because I make too many mistakes, a ballpen for checking finances but a fountain pen when I need to sign anything personal or of importance," says Mark Ivory, director of sales for pen brand Cross.

笔品牌高仕的销售总监马克·艾沃里指出："我工作的时候用铅笔，因为我出错太多，查账的时候我用圆珠笔，但是，当我需要签署一些私人文件或重要文件时，我会用钢笔。"

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。"

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。