是否存在不均匀收缩？
三峡工程永久船闸地下输水遂洞在洞室浇筑衬砌一段时期内，结构混凝土受到内外温差的影响，因不均匀收缩产生裂缝。
During concrete pouring for the tunnel of underground transmitting water system, the concrete structure was cracked by the difference in temperature inside and outside.
在现代建筑施工中，为了解决混凝土收缩、不均匀沉降等问题往往设置了后浇带。
The latter cast belt is usually set up in order to resist the contraction and uneven settlement of concrete in modern construction.
本文主要对变形裂缝的成因及控制措施作了分析和总结，其中包括混凝土收缩和温度变化引起的裂缝，以及地基不均匀沉降引起的裂缝等。
This paper is an analysis and summary about the causes of distortion cracks, including those caused by contraction of concrete and variation of temperature, and uneven settlement of foundation.
株，可引入微分收缩，冷却不均匀，或不均匀流量。
Strains can be introduced by differential shrinkage, uneven cooling, or nonuniform flow.
从砌体温度裂缝、混凝土收缩裂缝、基础不均匀沉降裂缝方面进行了论述，提出了相应的预防措施。
According to the cracks caused by temperature change, shrinkage, uneven settlement and other aspects discussion is made; at the same time preventive measures are proposed.
缸盖铸件在冷却过程中由于收缩不均匀产生变形，导致气道位置偏差。
Due uneven contraction, the cylinder head castings often deform and cause deviation of the ports position.
揭示了裂隙产生的机理是不同埋深处土体水分丧失速率的不同，产生了不均匀的收缩变形。
The mechanism of cracking is the different rates of water loss in different depths which caused the uneven shrinkage deformation.
氧燃比过高，粒子脱碳和黏结相在冷却过程中收缩不均匀是影响涂层结构和性能的决定因素。
When the oxygen fuel ratio is too high, particle decarburization and binder phase nonuniform contract in the cooling process are the determining factors to the coating structure and properties.
氧燃比过高，粒子脱碳和黏结相在冷却过程中收缩不均匀是影响涂层结构和性能的决定因素。
When the oxygen fuel ratio is too high, particle decarburization and binder phase nonuniform contract in the cooling process are the determining factors to the coating structure and properties.
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