Most low temperature cracking of asphalt pavement occurs when the cold snap or cold wave comes.
沥青路面的低温缩裂大多发生在寒流或寒潮突然来临时。
At present, a main reason of asphalt pavement's demolish is the low-temperature cracking of which.
目前，沥青路面的低温开裂已是造成路面破坏的一个主要原因。
Low-temperature cracking of asphalt pavement is mostly affected by low temperature performances of asphalt.
沥青的低温性能是影响沥青路面低温开裂的主要原因。
Analysis is made on the causes of concrete temperature cracking, on the concrete temperature control of works, and given the preventions.
对混凝土温度裂缝产生的原因、现场混凝土温度的控制和预防裂缝的措施进行等进行阐述。
Plastic cracking, temperature cracking and dry shrinkage cracking are always occurred during construction and application of the ready mix concrete.
塑性开裂、温度开裂以及收缩开裂是混凝土施工应用中经常出现的质量通病。
Mass waterproof concrete structure is a main waterproof barrier of underground works. Its technical crux is how to control temperature cracking of the concrete.
大体积防水混凝土结构是地下防水工程中的主要防水屏障，其技术难点是如何控制混凝土温度裂缝。
Then the authors analyse the effect of initial temperature and cooling rate on thermal stress and the low temperature cracking performance of different asphalt cement.
然后探讨了初始温度和降温速率等对温度应力的影响以及不同材料的低温抗裂性能。
The asphalt pavement performances, especially low temperature performances were modified in order to offer solutions for temperature cracking of asphalt pavement in frigid region.
以期改善沥青路面性能，尤其是低温抗裂性，为寒冷地区的沥青路面温度裂缝问题提供解决途径。
The evaluation showed that the high temperature stability, low temperature cracking resistance, aging resistance and temperature susceptibility meet the requirements of high grade road asphalt.
路用性能评价表明，沥青的高温稳定性、低温抗裂性、抗老化性和感温性等性能完全满足铺筑高等级公路的要求。 该产品正应用于国内高速公路的建设。
Deformation temperature and pass strain are the key factors controlling the cracking of the samples during deformation.
变形温度和应变量的精确控制是保证合金形变中不发生开裂的关键。
The factors of cold cracking of large porcelain sheel, cracking in temperature circulating test and cracking before warehousing are discussed.
主要讨论了大瓷套冷炸、温度循环试验中炸裂及瓷套经磨削入库后开裂的原因。
The dominant reaction pathways and the effect of reaction temperature and type of zeolites on the yield and selectivity of benzene formed during catalytic cracking of cumene were investigated.
在催化裂化反应条件下，研究了异丙苯主要裂化反应路径以及反应过程中反应温度和分子筛类型对苯产率和选择性的影响规律。
CONTROLLED COOLING: Process by which steel is cooled from an elevated temperature in a predetermined manner to avoid excessive hardening, cracking or internal damage.
强制冷却：将高温钢材强制冷却到设计温度的工序，可防止钢材硬化过度，破裂或者内部损伤。
The thermal cracking threshold of fine sandstone was determined with the change of temperature.
结果表明随着温度变化，细砂岩存在热破裂阀值。
The formation mechanism of bulging and cracking of combustor inner liner and his influence on gas turbine exhaust temperature dispersity was analyzed.
分析了火焰筒鼓包和破裂的形成机制对燃气轮机排气温度分散度的影响，提出了相应措施，以防止因燃烧恶化对热通道部件的伤害。
Epoxy cast dry-type distribution transformer high-voltage coil sealed by epoxy resin casting, using epoxy resin performance, cracking, high temperature, high mechanical strength, long life.
环氧浇注干式配电变压器高低压线圈都由环氧树脂浇注密封， 所采用的环氧树脂性能好，抗裂， 耐高温，机械强度高，寿命长。
Therefore well controlling of difference in temperature and temperature strain are important measures on concrete cracking control.
因此，控制好内外温差和温度变形是防止大体积混凝土出现裂缝的重要方法。
The cracking and skeletal isomerization became more strong with the rise of reaction temperature, while oligomerization, cyclization and hydrogen transfer reaction became weaker.
随着反应温度的提高，裂化反应和骨架异构化反应增强，但齐聚反应、氢转移反应和环化反应减弱。
They can withstand extremes of temperature and weather without fading or cracking.
它们能够经受极端的气温和天气状况而不褪色、不破裂。
The scattered coil - outlet - temperature (COT) and the unfixed temperature errors would influence severely the operation of cracking furnace and the ethylene yield.
各裂解炉管出口温度(COT)偏差的发散和误差的不确定，将对裂解炉操作和乙烯收率带来很大的影响。
With the geometrical size and temperature exchange value of the mine shaft, the possibility of the cracking on the mine freezing shaft would be increased with the depth of the overburden.
在井筒的几何尺寸及温度变化值确定的情况下，冻结立井随着表土段深度的增加，破裂的可能性在随之增大。
Moreover, they are able to decrease the temperature and increase the stress of hot cracking formation, as a result, decrease the tendency of hot cracking.
同时，稀土使合金的热裂纹形成温度降低，增加了热裂纹形成应力，降低了合金的热裂倾向性。
The effects of reaction temperature and space velocity on the cracking gas and liquid product yields and distribution of light FCC gasoline were investigated.
考察了反应温度和空速对催化裂化轻汽油裂化反应气液相收率和产品分布的影响。
Too high temperature of the operating temperature or chemical gas in the operating ambience will cause hoses cracking.
工作环境温度过高或工作空间有化学气体，可能会导致软管龟裂。
The problem, which occurs most often in the construction of large volume concrete, is the problem of cracking caused by temperature stress.
大体积砼的施工中出现最多的问题是温度应力导致的裂缝问题。
In catalytic cracking process, compared with thermal cracking, cracking temperature of endothermic hydrocarbon fuel could be decreased, so its endothermic capability could be increased effectively.
结果表明：催化裂解可显著降低吸热型碳氢燃料发生裂解反应的温度，提高其吸热能效。
I apply the minimum principle to the analysis of optimum temperature distribution on the basis of mathematic model for acetic acid cracking at high temperature.
依据醋酸高温裂化数学模型，应用最小值原理分析了裂化温度的最优分布。
I apply the minimum principle to the analysis of optimum temperature distribution on the basis of mathematic model for acetic acid cracking at high temperature.
依据醋酸高温裂化数学模型，应用最小值原理分析了裂化温度的最优分布。
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