乙炔

Selecting Distributed Feedback Laser Diode as light resource and the gas absorbing cell with fiber pigtail as its sensor, and using lock in amplifier to distill signal and harmonic measure technology to process that distilled faint signals, we design an instrument of remote and on-line measuring acetylene.

选用分布反馈式半导体激光器作为激发光源，带尾纤的气体吸收气室作为传感器的探测头，以及锁相放大器来提取信号，并通过谐波检测技术对所提取的微弱信号进行处理，设计了一套远距离在线测量乙炔气体的监测仪器。

In the second part of this thesis,the spectrum of third harmonic generation of polydiacetylenceis studied.

在论文的第二部分，讨论丁聚双乙炔的χ(3)谱。

The astronomers specifically looked for ratios of hydrogen cyanide to a baseline molecule, acetylene.

天文学家们特别留意了HCN氢氰酸分子相对于基准分子乙炔C2H2的比例。

The invention pertains to the technical field of medial intermediate compound synthesis, in particular to method to prepare 4-acetylenyl phenylformic acid.

本发明属于药物中间体合成技术领域，具体涉及一种4-乙炔基苯甲酸的制备方法。

Cold-welding production equipment: 10 T lane bridge, automatic welding production lines, welding machines, pay DC arc welding machines, plasma cutting machine, oxygen - acetylene automatic cutting machine, large coiling machine, cutting plate machine, bending machine , Polished stainless steel products production lines.

冷焊生产设备有：10T桥式行车、自动焊生产线、氩弧焊机、交直流电弧焊机、等离子切割机、氧-乙炔自动切割机、大型卷板机、剪板机、折弯机、不锈钢产品抛光生产线等。

The saturated solution can be directly recycled in distillation and turned into renewed solvent which has the same dissolving performance as the untapped one.After disparting from aluminum foil, the mixture of LiCoO_2 and acetylene black was lixiviated to extract cobalt ion. The leaching efficiency of cobalt was shown to be as high as 90% in the lixiviation experiments.

对钴锂膜上与铝箔脱离后的LiCoO_2、乙炔黑混合粉末，通过浸出钴的实验研究，确定了盐酸体系为合适的浸出体系，在盐酸浓度为6.67mol/L，反应温度80℃，反应时间50分钟的最优化浸出条件下，钴金属的浸出率可达90%以上。

In the medium of sulfuric,a analytical method for determining copper and iron in electrodeposited copper lixivium by flame atomic absorption spectrometry was studied.

在硫酸介质中，以铜和铁的次灵敏吸收线249.2nm，302.1nm为吸收波长，用空气-乙炔火焰原子吸收光谱法测定了电积铜浸出液中铜和铁。

Polybenzimidazolewas modified by means of blending with a novel heat-resistant resin methyl-di-phenylacetylene-silane,by which the meltability of PBI was impoved,and the time of the melting stage of PBI was prolonged,resulted in improvement of the processability of PBI,meanwhile the heat resistance of PBI did not decline,and the water absorption of PBI was lowered.

以一种新型耐高温树脂聚甲基二苯乙炔基硅烷通过共混改性聚苯并咪唑树脂，提高了PBI树脂的熔融性并延长了树脂熔融状态的时间，改善了PBI树脂的加工性能。同时PBI优良的耐热性保持不变，并降低了树脂吸水率。

Ethynylferrocene is a starting material for the preparation of many types of more complex organometallic compounds.

二茂铁乙炔是构筑其他更复杂的金属有机化合物的重要原料。

The ablation properties were tested in an oxyacetylene torch. The phase composition and morphology of the composites were investigated by XRD and SEM, respectively.

用氧乙炔烧蚀测试材料的烧蚀性能， XRD测试材料烧蚀前后的物相组成，采用SEM观察材料的微观形貌。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。