查询词典 shell-lac

Based on the covering-domain method, an expression for calculating the interior scattering sound field of an arbitrary-shaped closed thin shell in which there are some scatterers is given theoretically.

应用覆盖域方法从理论上研究了复杂形状封闭薄壳内部存在散射体时的内部散射声场。

Bellows is corrugated ring was closed circle of the tube-shaped shell, between the wave and the wave formed by a series of corrugated rings.

环形波纹管是波纹呈闭合圆环状的管形壳体，波与波之间由圆环波纹串联而成。

The conclusion can be obtained that the interior scattering sound field can be expressed as the superposition of the interior scattering sound field of the arbitrary-shaped closed thin shell and the external scattering sound fields of these scatterers.

研究结果表明，该内部散射声场可表示为封闭薄壳的内部散射声场和这些散射体的外部散射声场之和的形式。

The shell can be closed completely when the plastron is pressed against the carapace.

形容： 腹甲分为活动的前后两叶，有韧带相连，当腹甲向背甲合埋时，整个甲壳能够完全闭合。

Based on the covering-domain method, an expression for calculating the interior scattering sound field of an arbitrary-shaped closed thin shell in which there are some scatterers.

复杂形状；散射声场；散射体；封闭薄球壳；基于覆盖域的思想和方法，本文给出了复杂形状封闭薄壳在内部存在散射体时的内部散射声场计算表达式。

The ground state of Ag atom has a closed Ad shell and a single s valence electron, hence it could be seen as "alkali-like" metals.

基态银原子具有饱和的内层d电子4d~(10和1个价电子(5s~1)的电子构型，与碱金属壳层结构类似，因此被看作"类碱"金属。

XQ-200A series of small charactersúwith a full set of closed stainless steel shell, beautiful compact body structure, unique built-in pump technology and new ink system, so that theúapplicable to a variety of tough working environment.

XQ—200A系列小字符喷码机具有全套封闭不锈钢外壳，机身结构美观小巧，独特的内置泵技术及全新的墨路系统，使该喷码机适用于各种严峻工作环境。

The closed shell HF SCF calculations have been carried out for the electron transfer systems corresponding to different values of R, then the Koopmans' theorem is applied to estimate the energy level splitting △, and the relatonship between △ and R has been obtained.

对该电子转移体系进行闭壳层的单点计算，并用Koopmans定理计算了体系的分裂能△，得到△随线性反应坐标R的变化关系。

Summary Steel armored steel body is an important part of the armored vehicles, is a homogeneous armor plates at a certain angle welding armor all closed shell structure.

不要那种用GOOGLE 直接翻译出来的傻瓜式英语要求语法和结构起码要基本无明显错误，专业点的答案来中文摘要如下：摘要钢装甲车体是钢质装甲车辆的重要组成部分，是由均质钢装甲板件按一定的装甲倾角焊接而成的全封闭壳体结构。

Next best is wool or pile clothing under a waterproof shell.

最好是在防水外套里穿着毛织品。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。