查询词典 two-by-four

A multiple-step beams model was established to analyze the static stiffness characteristics of the double parallel four-bar mechanism with right angle flexible hinges based on the symmetry of the structure. Formula for calculating the static stiffness was derived by applying singularity function. On the basis of this analysis, the factors influencing the stiffness performance of the double parallel four-bar mechanism were studied from its geometric parameters, and the theoretical model was verified by finite element method.

根据其结构的对称性建立了静刚度分析的阶梯梁模型，引入奇异函数法推导了柔性双平行四杆机构的静刚度计算公式，在此基础上，分析了柔性双平行四杆机构各尺寸参数对其静刚度的影响，并采用有限元方法对理论模型进行了验证。

Passersby were asked to evaluate what they were told were four different nightgowns and four different pairs of stockings.

他们告诉路人这是四件不同的睡衣以及四双不同的袜子，并要路人对睡衣和袜子作出评价。

The economic integral of China district is an inevitable outcome of cross-straits four ground economy developing in the future.the Cross-straits can consider practice to unify the currency HB, and make HB become the one of the world currencies, and this will give cross-straits four districts important and big and economic benefits, and also will further promote the economic integral of China district .but practices to unify the currency HB must change current RenMinbi, Hong Kong dollar, NT$ and Pataca system, and will face the US$ and euro competition, etc..

内容摘要：中华区域经济一体化是未来两岸四地经济发展的必然结果，未来两岸可考虑实行统一货币"华币"，并使华币成为世界货币之一，这将给两岸四地带来重要大经济利益，也将进一步促进中华经济一体化进程。然实行统一货币"华币"必须改变现行人民币、港币、新台币及澳门币制度，而且将面对美元与欧元等货币的竞争。

This paper examines the soil characteristic and liquefaction degree of hard shell seams at the subaqueous delta of the Yellow River. Four typical areas were chosen for measuring, testing and studying. The hard shell seam strength was measured by in-situ Proctor penetrometer. Undisturbed soil sample of 1 m long was excavated for laboratory soil property test. Sledge hammers were dropped down freely to hit the load board to simulate the wave force acted on the hard shell seam. The excess pore pressure and strength variation were observed. The liquefaction depth of the hard shell seams at four study areas under different wave storms were calculated by theory.

为揭示黄河口水下三角洲硬壳层的土性特征和风浪作用下的液化破坏状况，选择典型研究区，在现场利用普氏贯入仪测试硬壳层的强度特征，原位取1m原状样进行室内土工试验；利用重锤锤击荷载板的方式模拟波浪对硬壳层的动力作用，通过孔压探头和普氏贯入仪实时监测土体内孔压和振动前后强度的变化；通过理论计算研究硬壳层在不同风浪等级下的液化深度。

Methods Four pairs of primers were designed from toxin sub-unit A gene, O139 special gene, Haemolytic subunit A gene and Toxin coregulated pilus subunit A gene. Multiplex PCR was established to simultaneously detect those four genes.

分别针对霍乱弧菌肠毒素A亚单位基因、O139群特异基因、霍乱弧菌溶血素A亚单位基因和毒力协同调节菌毛A亚单位基因设计引物，建立多基因PCR方法。

It seeds area and total yield are big in our country.This study combined Hubei province item of the project of country important food foisori science and technology. It considered the difference of climate character、 cultivate system and plant habit in the southeast of Hubei、 in the middle of Hubei、 in the northwest of Hubei and in the Jianghan plain four rice plant areas. It had formed " double season rice three ripe high yield in the southeast of Hubei mode "、" sparse、 manipulative、 weight middle season rice high yield in the middle of Hubei mode"、" zero till light-duty high yield plant in the Jinghan plain mode" and " cover with ground film wet in all process in the northwest of Hubei plant mode" four adaptive plant modes base on present plant modes.

本研究结合粮食丰产科技工程国家重大科技专项湖北项目的部分研究内容，针对湖北省鄂东南、鄂中、江汉平原及鄂西北四大稻作区不同生态气候特点、耕作制度和种植习惯，在现有栽培技术的基础上组装集成"鄂东南双季稻三熟高产模式"、"鄂中稀、控、重中稻高产模式"、"江汉平原免耕轻型丰产栽培模式"及"鄂西北全程地膜覆盖湿润栽培模式"四种配套栽培技术模式，分别在武穴、随州、沙洋、房县等四地进行大田试验示范。

There are four basic constants in natural units system: Planck constant , speed of light in the vacuum c, the quality of any particle and electron's electric quantity e. Other units can be educed by the four basic units.

自然单位制有四个基本常数：普朗克常数、真空中的光速c、任意粒子的质量和电子的电量e，其它单位都可以由这四个基本单位导出来。

A plane figure with four sides and four angles.

由多个多面形或平面限定的立体图形。

A four-sided plane figure with four right angles.

矩形，长方形具有四个边的方形，有四个直角

Results: The four components of uPA system were expressed in the plasma and membrane of the four cell lines.

结果：4种成分在4株细胞的胞浆及胞膜均有表达。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。