双

Masted fore - and - aft - rigged similar to the ketch but having a smaller jigger mast stepped abaft the rudder .

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A two - mast ed fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A tall chimney A two - mast ed fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

The comparison experiment results for measuring the displacement with the Abbe apparatus were given in this paper.

测试系统的光路包括四光束双焦点差动式光路和双光束双焦点参考光式光路。

Furthermore, the relationship between the residual norm of the semi-refined approximate eigenpair and that of the approximate refined eigenpair is discussed. The semi-refined biorthogonalization Lanczos algorithm is given. We carry on some numerical experiments, and the results show that the new algorithm is more efficient than its conventional counterpart.

根据精化投影方法的思想，提出了半精化双正交Lanczos方法，建立了半精化特征对和精化特征对对应的残量范数之间的关系，给出了半精化双正交Lanczos算法，数值实验表明，该算法比双正交Lanczos算法和拟精化双正交Lanczos算法优越。

As same as the above-mentioned reason, because theconditions at the inside straight boundary of the binarycomposite material can not be easily satisfied, here, anelastic circular inclusion with large radius is used to replacethe upper half space of the binary composite material, so the〓mary binary composite mater ial problem can be changed〓the scattering problem of a circular elastic inclusion andto the scattering problem of a circular eastic inclusion and〓circular cavity in an infinite space to the steady incident〓wave.

与前面两个问题的理由一样，同样，由于问题中双质复合材料的内部直边界上的边界条件不易解析满足，为此，本文采用了一个半径很大的弹性实夹杂来代替问题中双质复合材料的上半空间部分，而将原来的双质复合材料问题转化成了无限大空间中一圆形弹性夹杂和一圆孔对稳态P波的共同散射问题，根据该问题的特点写出了弹性夹杂内外波场中波函数的一般形式解，利用该问题中夹杂和圆孔处的位移和应力的连续条件，并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的无穷线性代数方程组，在满足一定计算精度的前提下，通过有限项截断进行近似求解，进而讨论了双质复合材料中圆孔边界处的动应力集中系数随不同入射角、圆孔的不同位置、以及入射波的不同无量纲波数的变化和分布情况。

The adsorptive properties of gas-liquid interface and liquid-solid interface of bisquaternary ammonium salt surfactant are used as object to study the surface tension of BQAS changing with its concentration,adsorptive isothermal line,saturated adsorption and minimum balance time.

以研究双季铵盐型表面活性剂BQAS吸附特性为目的，从溶液表面张力随浓度的变化、饱和吸附量等方面研究了双季铵盐BQAS的气液界面吸附特性；用双季铵盐BQAS和砂岩体系，在液固比一定时，从时间、浓度对静态吸附量的影响方面研究了双季铵盐BQAS的液固界面吸附特性。

I also found that broad Balmer emission lines probably have gravtitational redshifts. I tried to explain in the context of binry black hole model the quasi-periodic optical darkening and brightening, the H_βdouble peaked profile, the gravitational redshift of H_βemission line,and the wiggling of jet.

我注意到宽发射线H_β有双峰结构，并对双峰结构尝试给出了合理的解释，我还注意到巴耳末宽发射线可能存在引力红移，并尝试在双黑洞模型下来解释准周期性光学变暗和爆发、H_β双峰结构、引力红移和喷流摆动。

Through discussions on the effect of shrinkage in scouring-dyeing on the apparent and inherent quality of crepe de chine products, suggestions are made on some adjustments of crepe de chine's specifications and shrinkage in scouring, i.

探讨了染整工艺中练缩率对双绉成品外观质量和内在质量的影响，建议对双绉的规格和练缩率进行适当调查，将&统一出口绸缎规格&(1983年编)中规定的双绉经向练缩率2％～4％提高到8％～11％，以提高真丝双绉的成品质量。

The two-component-spray gun S 2-k is designed and constructed for application of two component materials f.i. 2-k lacquers or glues.

双组分喷枪又称双头喷枪，由2个圆形或者扇形液体雾化帽组成喷射主体头，主要用于喷射双组分原料、双色喷涂、纳米喷镀、激光上色等高精密电子行业。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。