乙炔

Microstructure of cladding layer was observed and analyzed with the SEM, and the micro-hardness was measured. The results were contrasted with the Ni60 coating remelted by oxygen-acetylene spraying.

用扫描电镜对熔覆层组织特征进行观察分析，用显微硬度测试仪进行硬度测试，与Ni60氧－乙炔火焰喷焊涂层进行了对比。

The degree of the complete reaction is affected by spray powder size, oxygen-acetylene flame power, spray distance and the composition of spray powder.

喷涂粉末粒度、氧乙炔火焰功率、喷涂距离以及喷涂粉末的原料配比均会影响Ti-C间的反应程度，从而影响Fe-Ti-C体系的反应动力学。

It is the filling material in argon arc welding and oxygen-acetylene gas welding for the aluminum alloy weldment expect the Al-Mg alloy, it can get the better effect in deal with the heat crack of the strengthening Al-alloy.

HS311 AWS ER4043 除铝镁合金以外的的铝合金工件和铸铁氩弧焊及氧-乙炔气焊时作为填充材料，特别对易产生热裂缝的热处理强化铝合金，可获得较好的效果。

It is suitable to be used as filling material for oxygen-acetylene gas welding and carbon arc welding, and also for manual braze welding. It is the ideal material for welding of copper alloy, copper, gray cast iron and hard alloy knife and etc.

HS221 JIS ZYCusN 适用于氧-乙炔气焊及碳弧焊时作为填充材料，也可用于钎焊，是铜合金、钢、灰铸铁及硬质合金刀具等焊接材料中较为理想的焊接材料。

The self-lubricanting coating of nickel-coated graphite was prepared by oxygen-acetylene flame spraying technology and its friction and wear properties at room temperature were studied in a ball on disk test rig.

选用镍包石墨粉末，采用氧-乙炔火焰喷涂技术制备镍包石墨自润滑涂层，在球-盘摩擦磨损试验机上探讨了室温条件下镍包石墨自润滑涂层的摩擦磨损性能。

The abrasion and scuffing behaviour of Ni-base spray-welded coating containing WC by oxygen-acetylene was studied and compared with those of boride layer using a MM200 wear tester.

利用MM200型磨损试验机研究了氧-乙炔焰镍基碳化钨喷熔层的磨粒磨损和抗咬合特性，并与硼化物层进行了比较。

The results showed that the interlaminar shear strength of modified carbon/phenolic resin composite was reached the maximum 31.17 MPa, the oxygen-acetylene linear ablation rate was the minimum 0.020 mm/s with the content of carbon nanofiber 15%.

结果表明，当纳米炭纤维质量分数为15%时，其改性复合材料的层间剪切强度最大，达到31.17MPa，氧乙炔线烧蚀率最小，为0.020mm/s。

The RFS TiC-Fe coatings have an adhesion strength (about 16 MPa) as high as Ni45 coatings obtained by traditional oxygen-acetylene flame spray.

当选取Fe=50wt％、C/Ti=1.4、喷涂粉末粒度=200～300目、喷涂距离=170mm和乙炔压力=0.09MPa时，涂层性能最佳。

The target molecules were synthesized through a Sonogashira coupling reaction of 1-trans-4-(trans-4-n-pentylcyclohexyl)cyclohexylacetylene and 4-iodo-2,3-difluoro- phenyl ether with total yields of 27%～28%.

目标化合物采用1-trans-4-(trans-4-正戊基环己基)环己基乙炔与4-碘-2，3-二氟苯基醚进行Sonogashira偶联反应制备，反应总产率27%～28%。

Based on the conformational analysis of diphenylacetylene, which can be viewed as the structural unit of PAMs, a new method for analyzing ring strain energy is proposed and used to analyzing the ring stain energy and the structural characteristics of the PAMs.

基于对大环分子构单元二苯乙炔分子的构象分析，提出了一种新的环张力能分析方法，并且用这种方法分析了分子环张力特性和几何结构特性。

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。