目前生物制氢技术中存在产氢效率低、氢气百分含量低等问题。
Currently, some problems exist in the biological hydrogen production, such as low efficiency of hydrogen-producing, low percentages of hydrogen.
获得典型工况下，系统制氢效率对这几个参数的相对线性敏感性系数。
At a typical case, the relative linear sensitivity coefficients of H_2 production efficiency to these operating parameters were calculated.
提高光合产氢效率、降低光合产氢成本，是实现光生物产氢技术应用化的关键。
To increase the efficiency of photoconversion and reduce the cost of biohydrogen are the critical work for the photobiological hydrogen production in the future.
分析了影响VD脱氢效率的众多因素，采取相应的措施后，基本上满足了对氢含量有要求的钢种的生产。
Many factors influencing dehydrogenation efficiency of VD are analyzed. The production of the steel grade demanding on hydrogen content is basically met after adopting corresponding measurements.
合同框架下的其他任务包括，改善电力马达效率、在机翼上集成太阳能电池并探索氢存储技术。
Other tasks under the contract include improvement of electric motor efficiency, integration of solar cells into aircraft wings, and the exploration of hydrogen storage technologies.
虽然极寒，而在点火后此燃料可以产生炽热的蒸汽(5000度)和足够的推力：氢比其它推进器燃料的效率高出40%。
Though the fuels are frosty, upon ignition they generate scorching steam (5, 000 degrees) and plenty of thrust: Hydrogen is 40 percent more efficient than other propellants.
而分解出氢的效率以重量计算可比其它太阳能热制程的效率高出一个数量级。
The gravimetric hydrogen production rate exceeds that of other solar-driven thermochemical processes by more than an order of magnitude.
正是由于这些缺点，人们不得不选择其它效率较低的方法如生物电池或电等来产生氢。
This explains why there's a lot of effort going into things like biofuels and using electricity to produce hydrogen.
这一效率为65%至75%的工序应能足够填补氢空缺，直到生产氢的可再生能源出现。
That process – usually 65 to 75 per cent efficient – should be sufficient to plug the gap until renewable sources of hydrogen become available, he says.
在某些场合下，使用脉冲电流还可以减少氢的析出、提高阴极电流效率，从而减少针孔、条纹和氢脆等。
In some cases, the use of pulse current still can reduce the lumber, improve the hydrogen cathodic current efficiency, thus reduce pinhole, striped and hydrogen brittleness, etc.
尽管如此，研究人员认为，对于实现有效率的利用藻类产生氢这一目标，他们已经迈出了第一步。
Still, the researchers see this as a first step in their goal to produce hydrogen efficiently from algae.
工业应用结果表明，由于催化裂化装置汽提效率的大幅度提高，焦炭氢含量下降到6 %。
Commercial application results showed that the stripping efficiency of the unit enhanced greatly and the hydrogen content in coke decreased down to 6%.
氢是一种十分理想的载能体，它具有能量密度高，热转化效率高，清洁无污染等优点。
As an ideal energy carrier, Hydrogen has advantages of high energy density, high convert efficiency and cleanness.
软件的使用有助于完善氢光谱实验环节，充实实验内容，提高教学效率。
It is helpful in improving the experiment for hydrogen spectrums, enriching the experimental content and raising teaching efficiency.
结果表明，采用以过硫酸铵亚硫酸氢钠为引发剂的产率、接枝率、接枝效率分别达到64.04%、73.82%、86.43%。
The result shows that the yield, the graft yield and the graft efficiency are 64.04%, 73.82%, and 86.43%, respectively.
能将水分子分解成氢的奈米管，现在分解效率更高，而且很快就可以使用到日光的可见光部份。
Nanotubes that break apart water molecules to liberate hydrogen can now do so more efficiently and could soon use the optical spectrum of sunlight.
过去，这种被称之为“电-氢”的过程效率低，产氢气量少。
In the past, the process, which is known as electrohydrogenesis, has had poor efficiency rates and low hydrogen yields.
氢能是人类未来的新能源，是因为氢能具备燃烧效率高及无污染等特点。
Hydrogen is a new energy future of humanity is due to hydrogen combustion with high efficiency and no pollution.
主反应器中部分炭转化为氢的系统冷煤气效率可达90%，分析揭示了系统中的热集成情况和能量平衡。
The cold gas efficiency is above 90% for the case that only part carbon is converted in the main reactor. The heat integration and energy balance are analyzed and uncovered.
镍氢电池负极用贮氢合金电极材料的充电电流效率对电池的密封以及能源节约都具有重要的意义。
The current efficiency during charging is important for the seal of nickel-metal hydride secondary battery and the saving of energy.
结果表明氢爆碎的吸氢速度和吸氢量与钕铁硼合金铸锭表面的活性有关，表面新鲜、活性大的合金铸锭氢爆碎的时间短、效率高。
The results show that the reactivity and the amount of hydrogen absorption in the HD process are related to the surface activity of the bulk alloy so that fresh active bulk has higher efficiency.
对氢网络和水网络的实例分析表明：改进后的方法避免了迭代计算，提高了计算效率。
Iterative calculation is avoided and the computational efficiency increased using the modified method. A hydrogen network and a water allocation network are analyzed by using the improved method.
钛合金易切削热氢处理技术是通过对钛合金进行热氢处理，改善其切削加工性能，提高机加工效率。
Technology of thermohydrogen treatment(THT) for free-cutting of titanium alloy is able to improve the machinability and machining efficiency of titanium alloy.
高温下，铝阳极晶粒脱落和析氢自腐蚀更剧烈导致阳极电流效率下降。
At higher temperature, grains are falling and hydrogen evolution is aggravated so that the performance of aluminum anodes become less satisfactory.
给出了氢气的四种储存方法，其中金属氢化物和碳质吸附储氢两种方法，由于安全可靠，储存效率较高，是目前广泛研究的储氢方式。
This paper presents four storage methods. Metal hydride and carbon adsorption, due to its safety and high storage efficiency, have been investigated widely.
在这个案例中，存储氢燃料电池在气态氢液体状态，而不是提高效率的5%。
In the case of hydrogen fuel cells, storing the hydrogen in gaseous rather than liquid form improves the efficiency by 5%.
结果表明：在其他物理、化学条件相同的情况下，无论是位错钉扎、还是氢陷阱作用，球形粒子的作用效率最低。
The results show that efficiency of the spherical particles for pinning dislocation and hydrogen trap is lowest on the same physical and chemical conditions.
除了会减少污染外，新的引擎还以更高的效率把汽油和氢能转化成电能，驱动汽车行驶。
In addition to being less polluting, the engines are extremely efficient in converting gasoline or hydrogen into electric power to drive the vehicle.
除了会减少污染外，新的引擎还以更高的效率把汽油和氢能转化成电能，驱动汽车行驶。
In addition to being less polluting, the engines are extremely efficient in converting gasoline or hydrogen into electric power to drive the vehicle.
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