Propylene and butylene yields increase with low hydrogen transfer reaction.
氢转移反应越低，丙烯及丁烯等烯烃选择性越高。
Low hydrogen electrode to be used for welding thick steel plate to casting and high tensile plates.
应采用低氢焊条焊接厚钢板与铸钢件和高强度板间的连接。
In a separate use or for the thick-walled tube welding, heat-resistant steel should use low hydrogen electrodes.
在单独使用或用于厚壁管焊接时，应选用低氢耐热钢焊条。
This practice is much more common with low hydrogen electrodes, since the core wire melts up inside the flux coating.
这种做法较为普遍，低氢焊条，因为融化的核心线内的通量涂层。
The technology of low hydrogen embrittlement Zn-Ni alloy electroplating on aeronautic high strength steel was studied.
对航空高强钢低氢脆电镀锌-镍合金工艺进行研究。
In the past, the process, which is known as electrohydrogenesis, has had poor efficiency rates and low hydrogen yields.
过去，这种被称之为“电-氢”的过程效率低，产氢气量少。
It was found that low hydrogen purity and high moisture content of the hydrogen used for deoxidation was the main cause.
对扬子石化有限公司连续重整装置催化剂还原过程进行分析，认为存在的主要问题是还原气中水含量高和氢纯度偏低。
The high yield of propionic acid in mixed acid fermentation was the main reason for the low hydrogen production capacity.
混合酸发酵的发酵产物中丙酸含量较高是产氢能力偏低的主要原因。
Low hydrogen type electrode is baked out before welding, the baking temperature and duration as specified by the manufacturer.
低氢焊条在焊前应烘干，烘干温度和时间遵照厂家说明。
It was then reacted with low hydrogen containing silicone oil via hydrosilylation to produce epoxy-containing polyether silicone.
再与低含氢硅油进行硅氢加成反应，合成出环氧聚醚改性聚甲基硅氧烷；
The effect of Harc and liquid bridge coexist"of low hydrogen type covered electrode onthe arc stability and spatter is pointed out."
指出低氢型焊条的“弧桥并存”现象对电弧稳定性和飞溅的影响。
The paper introduces the high toughnesses Ultra-low hydrogen electrode (new J807CF) which matches WCF—80 steel for manual arc welding.
本文介绍了高强高韧性超低氢新J807CF焊条，其各项性能均达到国外同类产品的先进水平，是WCF—80钢的专用配套焊条。
This paper describes the prescription design of the low hydrogen type basic electrode which is manufactured with screw type extrusion coater.
本文着重论述了以螺旋机为生产手段的碱性低氢焊条的配方设计。
Silicone polyether surfactant was synthesized by the addition reaction of low hydrogen content silicone and allyl polyether with Pt catalyst and under no solvent condition.
通过采用铂催化剂催化低含氢硅油与烯丙基聚醚的硅氢加成反应合成了有机硅聚醚表面活性剂。
Zinc alloy coatings can be obtained from suitable range of bath, and it has attracted a great attention due to their unique high corrosion resistance, low hydrogen brittleness and chemical stability.
锌合金镀层可以在适宜的镀液中比较容易的沉积出来，它具有优异的耐蚀性、低氢脆性和化学稳定性，已引起人们的极大关注。
The special phenomena of less or even no hydrogen flake occurrence in the hot saw rail specimens from China plateau steel plants, because there is low hydrogen content in molten steel, are discussed.
对我国攀钢和包钢两个高原钢厂生产重轨由于钢水中的含氢量很低、在热锯轨头中白点发生率极低，甚至不出白点的现象进行了分析，讨论。
There are just two hydrogen atoms per cubic centimeter on average in space, which poses no threat to spaceships traveling at low speeds.
太空中平均每立方厘米只有两个氢原子，这对低速飞行的宇宙飞船不构成威胁。
They discovered a first order phase transition, a discontinuity, in liquid hydrogen between a molecular state with low conductivity and a highly conductive atomic state.
他们发现了一个不连续的一级相变，这个相变是在液态氢低电导率的分子态和高电导率的原子态之间。
Blues and purples are created by lighter gases such as hydrogen and helium, while low-level nitrogen can add red fringes to the bottoms of green auroral curtains.
蓝色和紫色是来自较轻的气体比如氢和氦，而更低点的氮气能在绿色极光的底部添上红色的边缘。
The moon's low gravity also means that water composed of regular hydrogen and oxygen will escape quicker than heavy water, perhaps leading to a concentration of deuterium in the water of the moon.
月球的低重力也意味着由普通氢气和氧气组成水将会比重水更快的消失，可能导致在月球上水的氘含量。
The more hydrogen, the more acidic it is (low pH); the less hydrogen, the more alkaline it is (high pH).
越多的氢原子就越呈酸性(低ph值)；越少氢原子就越呈碱性(高ph值)。
And a range of technological advances — from hydrogen fuel cells to compact fluorescent bulbs — suggests that a low-carbon future need not require surrendering a high quality of life.
一系列技术进步——从氢燃料电池到节电型荧光灯泡——预示着将来对低碳的需求并不会牺牲掉生活的高质量。
Hydrogen atoms are more abundant than either helium or oxygen but their low mass means they are easily swept aside by the high-speed solar wind and can’t readily be detected.
福斯勒指出氢原子数量比氦原子或氧原子数量要多得多，但是它质量很小，很容易被太阳风吹散，从而不能被稳定地观测到。
Low doses of hydrogen sulphide, a gas which smells like rotten egg, can safely reduce the metabolism of mice, putting them into a state of suspended animation.
具有臭鸡蛋味道的硫化氢，小剂量的使用能安全的减缓老鼠的新陈代谢，使它们处于一种假死的状态。
The mice’s consumption of oxygen and production of carbon dioxide dropped ten minutes after they began inhaling hydrogen sulphide and remained extremely low as long as the gas was administered.
在吸入硫化氢气体10分钟后，老鼠的耗氧量和二氧化碳排出量出现下降，在硫化氢持续供应下会一直保持这种极低的状态。
The mice's consumption of oxygen and production of carbon dioxide dropped ten minutes after they began inhaling hydrogen sulphide and remained extremely low as long as the gas was administered.
吸入硫化氢10分钟后，小白鼠的氧气吸入量和二氧化碳呼出量都降至极低，而且只要继续供给硫化氢，小白鼠的生命体征就保持在这个状态。
The low water peak fiber is treated by deuterium in order to reduce the fiber's hydrogen sensitivity based on the analysis of peroxide defects in fiber.
通过分析光纤的过氧基缺陷，用氘气对成品低水峰光纤进行处理，以降低光纤的氢敏感性。
The mice's consumption of oxygen and production of carbon dioxide dropped ten minutes after they began inhaling hydrogen sulphide and remained extremely low as long as the gas was administered.
在老鼠吸入氢硫化物十分钟后，它们对氧气的消耗和产生的二氧化碳量下降，并且一直保持极低的水平只要这种气体一直在控制中。
Objective To explore the effects and damages of low-temperature sterilizing with hydrogen peroxide gas plasma (HPGP) on dental high speed turbine handpieces, so as to prolong its service life.
目的探讨过氧化氢等离子低温灭菌对牙科高速涡轮手机（简称手机）的灭菌效果及对手机的损耗情况，以增加手机的使用寿命。
Objective To explore the effects and damages of low-temperature sterilizing with hydrogen peroxide gas plasma (HPGP) on dental high speed turbine handpieces, so as to prolong its service life.
目的探讨过氧化氢等离子低温灭菌对牙科高速涡轮手机（简称手机）的灭菌效果及对手机的损耗情况，以增加手机的使用寿命。
应用推荐