查询词典 acetylene

First, different types of conducting materials chosen as raw materials are pressed into different form and different content terrazzo include graphite of 1000 meshes, graphite of 325 meshes, spherical graphite, carbon black, acetylene black and conductive Carbon Black, whose performances of analysis and comparison was made.

在实验过程中，通过选取不同类型的导电填料，制备了不同类型、不同含量的1000目石墨、325目石墨、球形石墨、普通碳黑、乙炔碳黑以及导电碳黑的抗静电地板，并对抗静电地板的性能作了分析和比较，最后选择了乙炔碳黑作为导电填料。

Attempts to use the same reaction conditions for the coupling of the remaining terminal acetylene unit of the resulting rod 15 to 1,3,5-triiodobenzene15 in triethylamine were initially unsuccessful.

尝试使用相同的反应条件耦合其余终端乙炔股造成15杆，以1，3，5 triiodobenzene15在三乙胺最初是不成功的。

On NaZSM-5, acetylene reacts with the water adsorbed on Na^＋ sites to form vinyl alcohol bound to the cations in zeolite through static attraction, corresponding to the weakly adsorbed species.

乙炔与HZSM-5中B酸中心上的水作用形成乙烯醇，后者在升温时变为碳正离子结合在分子筛的Al-O^--Si上构成强吸附物种。

The application of the wearproof surfacing welding technology with the tungsten-carbide rod melted by oxygen-acetylene flame to dies' surface reinforcement was introduced.

介绍了碳化钨条氧—乙炔火焰耐磨堆焊技术在模具表面强化中应用的工艺方法，同时提出了普通碳钢+焊接表面强化部分代替模具钢的方法，该方法在生产实践中取得了满意的效果。

Allene is an isomer of methyl acetylene.

丙二烯是甲基乙炔的一种异构体。

The combined TG-MS analysis showed that the gas products of the thermal decomposition of silver behenate were carbon dioxide,water,hydrogen,acetylene and some small molecule alkenes.

热重-差热分析-质镨联用的分析结果表明，山嵛酸银热分解的气态产物为二氧化碳，水，氢气，乙炔及一些小分子烯烃。

During the second transition about 231°C, a structural change took place, which corresponding to decomposition of silver behenate. The major thermal decomposition products are silver nanoparticles and behenic acid. The gas products from thermal decomposition of silver behenate were detected by MS. Carbon dioxide was first emerged, subsequently water, hydrogen, acetylene and some small molecule alkenes appeared.

采用MS对山嵛酸银在整个热分解过程中所释放出的气体产物的跟踪检测发现，首先是二氧化碳气体的放出，接着是氢气和水，随着温度的进一步升高，又伴随着乙炔和一些小分子的烯烃产生，当温度进一步升高到500℃左右时，被山嵛酸钝化的银纳米粒子逐渐失去了有机分子，最终的热分解产物为金属银。

A sensitive method for the determination of acetaminophen was proposed on the basis of the electrochemical response of acetaminophen at an acetylene black electrode in the presence of cetyl pyridine bromide.

在溴代十六烷基吡啶存在下，研究扑热息痛在乙炔黑碳糊电极上的电化学行为，建立了一种简便灵敏的电化学分析方法。

Seven 1-phenyl-(4-pyridinyl)acetylene derivatives were conveniently synthesized in this paper using corresponding styrylpyridines as starting materials by bromination, rearrangement and debromination.

本文采用简单易行的方法从苯乙烯基吡啶类衍生物通过溴化、重排和脱溴化反应合成了7种苯乙炔基吡啶类单体，研究了它们在1mol/L盐酸水溶液中的光环加成反应。

for preparing n-boc or n-cbz derivatives of chiral alpha,alpha'-disubstituted pyrrolidines containing olefinic bond and acetylene bond

一种制备含烯键和炔键取代基的手性α，α'-二取代吡咯烷的n-boc或n-cbz衍生物的方法

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。