难检字字典在线查询

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。

1. 有机化合物，无色有臭味的可燃气体。由电石和水作用生成。用来合成有机物质，又用于照明或高温燃烧。也叫电石气。

• 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。