acetylene

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。

Transportable gas cylinders - Cylinders for dissolved acetylene - Inspection at time of filling.

可运输的气瓶.溶解乙炔用气瓶.填充时的检查

Calcium carbide, from which he later obtains acetylene, first made by German chemist Friedrich Wohler.

德国化学家弗里德里希·维勒首次制备出碳化钙，随后他以此获得乙炔。

The present invention belongs to a method for manufacturing oxygen-acetylene (liquefied gas) cutting nozzle and divergent cutting nozzle.

本发明属于氧-乙炔（液化气）割嘴、扩散型割嘴新的制造方法。

Protect the bottom heads of acetylene cylinders from damp ground.

保护钢瓶底部，防止接触潮湿的地面。

States the latent hazardness of such hydrocarbons as acetylene in air separator, and presents the preventive measures in normal production.

阐述乙炔以及碳氢化合物在空分装置中具有的潜在危险性，并提出在正常生产中的预防措施。

Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - Safety requirements in high-pressure devices.

气焊设备.焊接、切割和相关工艺用乙炔复式接头系统.高压装置的安全要求

Transportable gas cylinders - Periodic inspection and maintenance of dissolved acetylene cylinders.

可运输储气瓶.溶解性乙炔气瓶的周期性检验和维护

Said polymer composite can also contain a fine-dispersed acetylene carbon black in a quantity of 1. 2 mass%.

所述聚合物复合物可以另外包括1到2重量%的细乙炔炭黑。

The acetylene gas generated by calcium carbide can be applied to weld or cut metal materials.

同电石发生乙炔作金属切氰和焊接。

Currently, the main production methods of chloroprene rubber include acetylene process and butadiene-based.

目前，氯丁橡胶的生产方法主要有乙炔法和丁二烯法。

David does not live up, it is such a system on acetylene gas.

戴维不负重望，很炔就制出这种气体。