板层

The behavior of vibrations of orthotropic anti-symmetric angle-ply laminated plates is investigated in this article.

本课题研究了正交各向异性反对称角铺设层合板的振动特性问题。

Focuses on activities related to panel processing and latest techniques used in particleboard, MDF, OSB, laminated board, plywood and veneer production.

亚洲板材与家具的焦点所在，着重介绍与板材加工有关的活动和、层压板、胶合板和单板的最新技术。

The traditional circuit boards, particularly early pachytene circuit boards, as requested details of the lines is not very high, it can use the network will be printed circuits printed on the inner layer substrates.

传统的电路板，尤指早期的粗线电路板，由于线路的细致要求并不是很高，因此可以用网印的方式将线路直接印在内层基板上。

Based on the finite element method and periodic boundary conditions,a method to analyze the compressive strength of stitched laminates was established,which adopted a bridging model and maximum stress criteria to predict the development of damage and obtain the compressive strength.

提出了三维纤维弯曲模型，基于有限元法和周期性边界条件建立了缝合层板压缩强度分析方法，采用桥联模型和最大应力判据分析损伤扩展并获得压缩强度，预报结果与试验吻合较好。

This paper introduced principle, flow, process of catalytic platelets of photoetching in the integral catalyst bed with high precision mould of dual-face self-aligner and standard MEMS photoetching technology.

采用自主设计研制的高精度双面自对准光刻模具和标准MEMS 光刻工艺技术研制出整体式层板催化剂床板片，简要介绍了光刻工艺原理、工艺流程和工艺过程。

Determines plasterboard layout, and installs insulation and vapour barriers

确定石膏板的布局，安装绝缘和隔气层。

Ointment extracted from Plastrum Testudinis was separated by silica gel column chromatography, gradiently eluted by petroleum ether-ethyl acetate, and 16 (Ts-1～Ts-16) components were obtained, which were biologically evaluated by MTT assay and flow cytometry on the proliferation of rat marrow-derived mesenchymal stem cells. Results showed that Ts-12 induced proliferation compared with the control group ( p ＜0.05), while Ts-4 showed inhibitive effect. Other groups showed no significance ( p ＞0.05). GC-MS was used to analyze the chemical components in different groups.

中药龟板提取物浸膏经硅胶柱层析，用石油醚-乙酸乙酯作洗脱剂，梯度洗脱，得到16个组分；采用MTT法和流式细胞技术研究了它们对鼠骨髓间充质干细胞的增殖作用，实验结果显示组分Ts-12具有促进rMSCs增殖的作用( p ＜0.05)，而组分Ts-4则表现出抑制rMSCs增殖的作用( p ＜0.05)，其它样品对rMSCs的增殖作用不显著( p ＞0.05)，不具统计学意义。

The front and back of the composite plate is made of armor steel and in the middle is ceramic.

其中层合板的面板和背板均为装甲钢，中间为3层氧化铝陶瓷。

Has been put on the market's main product portfolio has PEMB HA series, plus the roof layer, shops, police box, steel door / window, partition, magnesium phosphate composite sandwich panel and so on.

已投放市场的主要产品有轻钢组合房系列、楼顶加层、商铺、岗亭、塑钢门/窗、内隔墙、镁磷复合夹芯板等。

Based on the linear elastic theory, the piezoelectric theory and magnetostrictive theory, using the power series expansion series method, a three-dimensional resolution of the natural frequencies of a simply supported rectangular laminate is investigated.

基于线弹性理论、压电理论和磁致伸缩理论，使用幂级数和傅立叶级数解法，得到了四边可移简支、磁电复合材料层合板的固有频率的三维精确解。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐