将墙体分割成两个或若干个独立墙肢的缝，允许墙肢在其平面内自由变形，并对外力有足够的抵抗能力。 控制缝是根据砌体材料的干缩特性，把较长的砌体房屋的墙体划分成若干个较小的区段，使气体因温度、干缩变形引起的应力或裂缝很小，进而达到控制的地步，故称控制缝。见砌体规范条文说明6.5.7。
配套应用粉陶降滤和控制缝高等技术优化了水力压裂工艺。
Hydraulic fracturing technology is optimized using the technique of filtration reducing by fine pottery clays and fracture height control.
现场实验表明，清洁压裂液具有破胶性能，施工摩阻低，携砂能力强，可有效地控制缝高。
Field using verified that the fluid possesses good gel breaking property, the operating friction value is low, the proppant carrying ability is strong and fracture length is in control.
研究并提出了带缝混凝土坝运行期的馈控运行荷载的方法，推导了其计算控制荷载的公式，研制了相应的分析程序。
This paper studies and puts forward the feedback analysis method of operation and control loads of the dam with slot during operation period and derives its calculation control load formula.
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