查询词典 bead

Composites of hollow glass bead /ultramicro iron/ EP with three-layer structure were prepared by coating EP on the surface of composites of ultramicro iron-coated hollow glass bead.

通过在超微铁包裹中空玻珠复合粒子表面再包裹一层EP，制备出了中空玻珠/超微铁/EP三层结构复合粒子。

Having consulted all the available literature on the subject, according the basic principal and method of design of radar absorbing materials, composites of epoxy resin-coated ultramicro iron, ultramicro iron-coated hollow glass bead, and hollow glass bead /ultramicro iron/ EP with three-layer structure were prepared.

本文是在查阅了大量国内外文献的基础上，依据雷达波吸收材料研究的基本理论和设计方法，以羰基铁为重点研究对象，采用原位复合的方法制备环氧树脂包裹羰基铁、超微铁包裹中空玻珠以及中空玻珠／超微铁／EP三层结构复合粒子。

The yield and purity of each DNA sample was tested by UV-spectrophotometer, the integrality of these DNA samples were run electrophoresis on the agarose gel. Each DNA sample was subjected to PCR amplification and hybridization using One lambada rSSO HLA-A,-B and -DRB1 commercial kit, the fluorescent intensity for positive bead and negative bead hybridized with HLA-A,-B and -DRB1 PCR products were calculated and analyzed.

使用2ml深孔板和TECAN DNA全自动工作站，从288份骨髓捐献者样本中提取基因组DNA；提取的DNA样本用紫外分光光度仪测定其浓度和纯度，并采用琼脂糖凝胶电泳检测DNA的完整性；DNA样本用One lambda rSSO HLA-A、B和DRB1基因分型试剂盒进行PCR扩增、分子杂交和Luminex流式磁珠分析仪检测，统计分析每一DNA样本HLA-A、B和DRB1基因扩增产物经DNA探针分子杂交后的阳性磁珠和阴性磁珠的荧光信号强度。

The research results found that due to the energy characteristic of the hybrid welding, the lap welding joint of magnesium alloy appeared "pin shapes " and the microstructure characteristics can be divided into two parts: The top of bead was the zone acted by laser and TIG together, while the bottom of bead was acted by laser alone.

研究发现：复合热源搭接的能量特点导致接头宏观呈&图钉&形状，复合热源搭接焊的热循环特点导致了接头微观组织的特殊性：接头上部呈现激光焊与TIG焊共同作用下的组织特征；接头下部呈现明显的激光焊组织特征。

To cooperate cure better, improve the life quality of patient of leukaemia of chronic bead cell, nurse commonly in executive internal medicine on groovy foundation, increase the standardization that suits patient of leukaemia of chronic bead cell to nurse content.

为了更好地配合治疗，提高慢性粒细胞白血病病人的生命质量，在执行内科一般护理常规的基础上，增加适合慢性粒细胞白血病病人的规范化护理内容。

Bead-over-bead technique was found to help in improving the fracture toughness of weld metal further.

珠子超过珠子技术被发现，以协助改善断裂韧性的焊缝金属进一步。

Above six plys, tires would be extremely rigid in the bead and be very difficult to mount on a single-piece wheel without damaging the bead.

上述6 plys ，轮胎将是极为僵硬的珠子和是非常困难的挂载一个单件车轮不损坏珠。

The effects of the addition level,particle size and modification technology of silver-coated glass bead and the curing degree of electrically conductive silicone rubber on the electrical conductivity of silver-coated glass bead/silicone rubber composite were investigated.

研究镀银玻璃微珠的用量、粒径、表面改性工艺以及导电硅橡胶硫化程度等对镀银玻璃微珠/硅橡胶复合材料导电性能的影响。

The result shows that, when a free droplet transfer mode is applied in high-speed welding , the workpiece is heated by the arc throughout the process and thus the molten pool can not solidify in time.As a result, the molten pool is very long, which gives way to the instability of bead formareron and pinch effect of the liquid metal,so that it finally leads to the humping phenomenon. Based on the analysis and experimental result, the short-circuiting transfer mode is suggested to improve the bead formation in high-speed welding .

理论分析和试验结果均表明，采用自由过渡的熔滴过渡形式进行焊接，工件始终处于焊接电弧的加热下，在高速焊接时，熔池不能及时冷却，熔池明显拉长，由扰动引起的振动波长大，当熔池的拉长达到一定程度时，会发生液体金属的失稳和颈缩的现象，造成驼峰焊道。

Wei Erxun of history · of · of Aberdonian botanist Alexander succeeds for the first time in his conservatory the ground gave the pollen of rye plant of soft bead wheat.

苏格兰的植物学家亚历山大·史·维尔逊在自己的温室里第一次成功地将黑麦的花粉授给了软粒小麦植株。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。