后表面
- 与 后表面 相关的网络例句 [注:此内容来源于网络,仅供参考]
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At 373 K, most of the physisorbed thiophene desorbs, with a small portion undergoing sulfur abstraction on the newly exposed nickel surface.
加热至373K,大部分物理吸附的噻吩直接脱附,其余部分在碳物种脱附后暴露的Ni表面上发生解离。473K时表面的碳物种消失,而残留在样品上的硫均转化为硫化镍。
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This invention relates to a circular small UHF antenna with high dielectric constant and its processing method, among which, the UHF antenna characterizes that 1,it is composed of a radiation plate, a feed point and a medium chip, 2, the radiation plate is closely adhered to the top surface of the medium chip, the bottom surface is the metal ground face, the chip and the radiation plate is rectangle or square, 3, the feed point is at the 1/3 place of the diagonal line of the rectangular or square radiation plate apart from the top point.
本发明涉及一种高介电常数圆极化小型超高频天线及其制作方法。UHF天线特征在于(1)所述的超高频天线是由辐射贴片、馈电点和介质基片组成;(2)辐射贴片紧贴在介质基片的上表面,介质基片的下表面为金属接地面;介质基片和辐射贴片呈矩形或正方形;(3)馈电点位于矩形或正方形的辐射贴片的对角线离顶点的1/3处。其制作方法是采用ε≥38高均匀性陶瓷基片,再结合丝网印刷技术完成厚膜焙银后形成辐射贴片,然后再圆极化。具有制作工艺成熟、体积小及使用灵活等特点。
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The results show that glycerol, as surfactant, with a concentration of I % can alternate the interfacial tension between water and oil to some extent; thusly, the conglomeration problem can be inhibited during the microencapsulation process. Meanwhile, by controlling the reaction rate of condensation polymerization and adjusting the pH of the system, the floccules can be restrained effectively, and microcapsules with smooth surfaces are obtained. Finally, the addition of NH4Cl may result in properly strengthened microcapsules to resist the collapse during nature drying.
结果表明:采用质量分数为1%甘油做表面活性剂,可适当调节油/水界面张力,抑制微胶囊化过程中的黏结团聚;通过调节体系pH值,控制缩聚反应速率,可有效抑制水相中絮状树脂的产生,得到表面光滑的微胶囊;采用氯化铵作固化剂对微胶囊进行固化,可有效提高微胶囊的机械强度,得到在自然干燥后不破裂的微胶囊。
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The current decay of CO oxidation at Pt SPE gas sensing electrode in short time scale has been studied.
对短时间内Pt-SPE气敏电极上CO氧化电流的衰退现象的研究表明,Pt表面无CO吸附态情况下,衰退主要与电极阳极极化后Pt表面氧化程度加深有关;采用动电势扫描法可使电极对CO氧化的催化活性基本恢复,但随着电极的进一步极化,衰退仍会继续。
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And some are caused because the grinding stone the grain grade is not reasonable or not polished so well.
肉眼看来光洁如镜的花岗石石材的表面,在反光显微镜下和扫描电子显微镜下可以看出石材表面都存在在磨抛加工后所留下的凹坑和条痕,这些凹坑和条痕有的是在目前的加工条件下无法克服的由矿物本身的缺陷而造成的,有的则是因为在加工过程中由于磨石粗细等级不合理或磨抛不彻底所造成的。
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At.the later stage the inerease in corrosion product scale thick- nces was sololy due to growth of iron oxides on the scale surface .
腐蚀产物膜生长到一定厚度后,扩散到表面的合金元素及铁的浓度降低到只有铁的氧化物在腐蚀产物表面生成。
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In order to accommodate the pickling line and tandem cold mill unit with diversification of the production rhythm,loopers are equipped between welders and tension levelers,between acid tanks and side trimmers and at the entry of the tandem cold mill to store the strip and keep the pickling speed stable.
0前言随着下游产品和后道工序针对冷轧钢板表面质量和内在性能要求的不断提高,在冷轧的酸洗轧机联合机组中,无论正常的生产节奏如何变化,都希望能够做到带钢表面酸洗的连续、稳定、恒速,为了达到这一目的,在焊机和拉矫机之间、酸槽和圆盘剪之间以及轧机入口,分别设置了用于储存带钢的活套装置。
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This surface-applied collagen can only stay on the surface of your skin and is washed off after one or two face washings.
在肌肤表面涂抹胶原蛋白只能让它在肌肤表面停留一段时间,一两次洗脸后就会被全部洗净。
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The receptors were obviously densest at the filiform apparatus of the synergids.
麦芽凝集素受体在受精前的中央细胞和卵细胞膜表面均匀分布,而在受精后的合子和初生胚乳细胞膜表面缺失。
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Crack reasons for this are: the heating temperature is too high as a result of quenching or cooling in a hurry, the quality of thermal stress and metal volume changes in the organization of the anti-stress than the breaking strength of steel; the work of the original surface defects (such as surface micro-cracks or scratches) or the internal defect of steel (such as slag, serious non-metallic inclusions, white point, the residual cavity, etc.) formed in the quenching stress concentration; serious Decarburization and carbide surface segregation; parts after quenching Back lack of timely or tempering fire; processes in front of the stress caused by excessive cold red, forging folding, turning deep marks, sharp edges and corners, such as the oil groove.
造成这种裂纹的原因有:由于淬火加热温度过高或冷却太急,热应力和金属质量体积变化时的组织应力大于钢材的抗断裂强度;工作表面的原有缺陷或是钢材内部缺陷(如夹渣、严重的非金属夹杂物、白点、缩孔残余等)在淬火时形成应力集中;严重的表面脱碳和碳化物偏析;零件淬火后回火不足或未及时回火;前面工序造成的冷冲应力过大、锻造折叠、深的车削刀痕、油沟尖锐棱角等。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。