查询词典 ethane

At middle and low temperature, there is more hydrogen, more nitrogen, higher dry coefficient and ratio of ethane content to propane's in marlite than in shaly limestone.

在中、低温度段，泥灰岩所产气体的C1/ΣC+1、C2/C3值和所产氢气、氮气的量高于纯灰岩。

The first four members of the series (methane, ethane, propane, butane) are gases at ordinary temperatures; the next eleven are liquids, and form the main constituents of paraffin oil; the higher members are solids.

最前的四个烷烃化合物(甲烷、乙烷、丙烷、丁烷)在常温下为气体；接下来的十一个为液体，是构成石蜡油的主要物质；更高碳数的则为固体。

Flammable media: is mixed with the air less than 10% lower explosive limit, or upper and lower limits of the difference between an explosion equal to 20% greater than the gas, such as a methylamine, ethane, ethylene and so on.

易燃介质：是指与空气混合的爆炸下限小于10％，或爆炸上限和下限之差值大于等于20％的气体，如一甲胺、乙烷、乙烯等。

This method of measurement requires a hydrocarbon trace gas, in this case ethane, which is delivered to the tunnel mixed with an inert neutrally buoyant carrier gas, in this case nitrogen.

这种测量方法需要碳氢化合物跟踪乙烷在这种情况下，它是提供给混合惰性，在这种情况下，氮的中性浮力载气，隧道气体。

The search results of two clones ovular differential proteins showed that some of factors that peroxidation and bio-molecule damnification hurt frame and function of cell and producing ethane because sterile clone ovule was devoid of protected enzyme system.

由于胚珠较可育系存在较少量糖酵解必需的酶，加之碳源短缺可能激发糖原异生过程，使胚珠生长发育所需中间产物减少及能量短缺。

From this perspective, flammable ice can be regarded as the natural gas in the highest purity, and you know, the general state of the natural gas, methane is only about 92% less, in addition to about 3% of the ethane, about 2% of the nitrogen and about 1% of the propane, as well as a very small amount of butane, pentane and oxygen and so on.

从这个角度说，可燃冰可算是自然中纯度最高的天然气了，要知道，一般状态下的天然气中，甲烷大约只占92%不到，此外还有3%左右的乙烷、2%左右的氮气和1%左右的丙烷，以及极少量的丁烷、戊烷和氧气等。

The reaction products of ethylene hydroformylation on the three kinds of catalysts were mainly propanal, ethane and propanol.

反应温度、空速、压力及物料配比对乙烯转化率和丙醛选择性均产生一定程度的影响。

The influences of different organic bridging ligands pyrazine,2-pyrazinecarboxylate,4,4′-bipyridine and 1,2-bis(4-pyridyl)ethane on the cobalt vanadate system were explored.

同时还研究了不同的有机桥式配体吡嗪、2-吡嗪羧酸、4，4′-联吡啶和1，2-联(4-吡啶基)乙烷在钴钒体系中的作用。

In the rhombohedron, each top site is occupied by a pair of ligand-unsupported Ag atoms which are surrounded by six phenol groups in an ethane-like structure. The phenol groups at another ends of the ligands bridge the rhombohedrons into novel non-interpenetrating three-dimensional network.

在每个棱柱体内，每个顶点由无桥连配体支持的、周围的六个酚羟基以一种不寻常的、类似于乙烷分子结构的扭曲方式排列的一对 Ag 原子占据，配体另一端酚羟基将棱面体连接成新颖的非穿插的具有棱形通道(沿 a 和 b 轴方向)的三维网络结构。

With nucleus-shell polymer MBS as toughener,epoxy ethane as compatibilizer,nylon1212/MBS/epoxy blend was prepared by means of blending extrusion,and the mechanical properties of the prepared blend were determined.

采用核-壳聚合物MBS为增韧剂和环氧乙烷为相容剂，采用共混挤出的方法，制备了尼龙1212/MBS/Epoxy共混合金，测定了力学性能。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。