双模

It is shown that, any reprersentation finite special biserial algebra has a Groebner basis theory, and a finite-dimensional basic algebra over an algebraically closed field is representation finite if and only if every module over it has a right Groebner basis theory.

证明了表示有限特殊双列代数有Groebner基，从而扩大了Groebner基理论的应用范围；证明了一个代数封闭域上的有限维代数是表示有限特殊双列代数当且仅当其上每个右模都有右Groebner基理论，从而扩大了右Groebner基理论的应用范围。

For initializing the reference quantity of Bragg wavelength, the vertex angles of the biprism are determined by the 1 diffraction angle of phase mask and the refract index of the biprism.

为了初始化Bragg波长的参考值，双光栅的顶角由相位掩模的1级衍射角和双棱镜的折射率确定。

In this system, the gratings are inscribed by the UV interference fringes of 248 nm derived from a rotatable biprism, where the phase mask is used as a beam splitter, and the biprism is rotated to change the intersection angle of two beams.

在该系统中，光纤光栅是由来自可旋转双棱镜所形成的波长为248 nm的紫外干涉条纹写入的，其中，相位掩模被用作1级衍射光的分束器，通过双棱镜的旋转可改变两写入光束的交叉角。

The authors calculated the energy deposition coefficients of 4He + on C and Cu under the normally incident condition by using the improving bipartition model which accounts for the angular correlation of energy losses partly.

利用部分地考虑了能量损失的角关联的改进离子输运双群模型，计算了4He＋离子垂直入射到C和Cu上的能量沉积系数，改进了早期的离子输运双群模

We prove the Fundamental Theorem of the entwined modules and give a necessary and sufficient condition for the R-twisted product of two bialgebras to be a bialgebra.

主要证明了缠扭模上的基本定理；给出了两个双代数的R-扭积是双代数的一个充要条件。

It use two disparting surface,and it's frame is fast.It use point moulding gob,so,it can fall off automatism.When it is pulled out ,the pulling pole pull the product and accomplish the pulling of it's side concave . The design project is divided into two parts.

它采用双分型面分型，结构紧凑；采用点浇口，且浇口可以自行脱落；顶出时，由推杆和斜顶杆顶出制品并完成制品内侧凹的抽芯；模具定模上的水道以多支回路分别冷却，动模一侧的型芯由三组水道分别冷却。

Mold opening/closing mechanism: double fulcrums and single toggle pneumatic + mechanical clamping device.

开合模机构：采用双支点单曲肘的气动+机械式合模装置。

Product main business: 1, 1400 ~ 2500mm, single, three, five, seven corrugated cardboard production line 2, 2200 ~ 3500mm, double, three, four, five-color printing slotting die-cutting machine three, 2400 1200mm automatic visco-box machine , semi-automatic machine stick me four, all kinds of specifications±sub-machine semi-automatic paper isobar nail box machine, paper balers, etc. Friday, 800 ~ 1620 mm automatic platen die-cutting the six-ping, 1100 ~ 1450mm automatic paper mounting machines, seven semi-automatic paper mounting machine, a variety of bundlers, eight winding machine, all kinds of specifications, types of testing equipment carton¨Buck Shanghai Machinery Co., Ltd. of China's packaging industry and the packaging machinery market very well.

主要经营产品：一、1400~2500mm ，单、三、五、七层瓦楞纸板生产线二、2200~3500mm，双、三、四、五色印刷开槽模切机三、2400×1200mm 全自动粘箱机、半自动粘箱机四、各种规格的薄刀分纸压线机半自动钉箱机、废纸打包机等五、800~1620 mm 全自动平压平模切六、1100~1450mm全自动裱纸机、半自动裱纸机七、各种规格的捆扎机、缠绕机八、各种规格、类型纸箱检测设备上海川斯霸克机械有限公司对中国包装行业及包装机械市场非常了解。

Finally, on the base of discussing the value of module resilience, the pavement deflection of road surface caused by the the changing module of resilience is analyzed, by means of the two-circle load multilayer elastic system.

最后，在探讨路基回弹模量取值的基础上，利用双圆荷载弹性层状体系理论，计算路基模量变化对路面结构表面弯沉的影响。

Reaearch on mode selection theory of coupled resonator and single, double wave plate longitudinal-mode splitting theory.

研究耦合腔激光器的选模原理以及单、双波片纵模分裂原理。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失