查字网是免费的在线辞海新华字典查询网站,内容来源于网络,如有侵权请及时通知我们删除。
查字网为您提供包括汉字源流、汉字字源、字形演变等查询,收录词语超过40万条,提供汉语词组解释、反义词、近义词、汉字组词造句等内容。
欢迎您使用查字网汉字字源字典查询汉字流源、字源字义及字源演变,我们将继续丰富和完善字源网字典,以便为您提供更好地帮助和服务。
查字网 版权所有 苏ICP备11037243号
词语乙炔拆分为汉字:
乙字的拼音、笔画、偏旁部首、笔顺、繁体字,乙字字源来历,乙字演变
天干的第二位,用于作顺序第二的代称。指代一方:甲方~方。~型脑炎。中国古代乐谱的记音符号,相当于简谱“7”。姓。……
炔字的拼音、笔画、偏旁部首、笔顺、繁体字,炔字字源来历,炔字演变
1. 炔 [quē]炔 [quē]有机化学中可以用CnH2n-2表示的一系列化合物。……
查询词语:乙炔
汉语拼音:yǐ quē
有机化合物,分子式C2H2。是最简单的炔烃,用于焊接和照明的电石气就是含有少量有毒杂质的乙炔,纯乙炔是无臭和近乎无毒的。空气含乙炔在2.8%—65%范围内,可因火花引起爆炸。纯乙炔受压达150千帕时,可因撞击而爆炸。
But since no probe has directly sampled them, no one knows how much acetylene they might contain.
但是由于没有确凿证据,没有人知道它们包含多少乙炔。But in that case, too, a catalyst would be needed to boost reaction rates enough to account for the dearth of acetylene.
但在那种情况下,也需要催化剂去加快足够的反应速度,以解释乙炔的缺失。The reaction to release of the heat, namely the acetylene in oxygen burning process is an exothermic chemical process.
上述的反应释放出热量,即乙炔在氧气中燃烧的过程是一个放热的过程。The hazards of higher alkynes held up in acetylene concentration system were presented.
介绍了乙炔装置提浓工号高级炔烃滞留系统的危害;Must be in between converge-wires installation guide and acetylene line of electrostatic eliminating grounding device.
一定要在汇流排间和乙炔管道上安装导除静电的接地装置。Transportable gas cylinders - Battery vehicles for permanent and liquefied gases (excluding acetylene) - Inspection at time of filling.
可运输储气瓶.永久气体和液化气(乙炔除外)用蓄电池驱动车辆.灌装时的检验Transportable gas cylinders - Cylinder bundles for permanent and liquefied gases (excluding acetylene) - Inspection at time of filling.
可移动储气瓶.恒定气体和液化气体(不包括乙炔)用钢瓶组.灌装时间的检查Transportable gas cylinders - Cylinders for compressed gases (excluding acetylene) - Inspection at time of filling.
可传送的气瓶.压缩空气瓶(不包括乙炔).灌充时的检查As one of bulk chemical materials, acetylene were widely used in commercial production of chemicals.
乙炔作为大宗化工基础原料,具有广泛的用途。