Bolt Hole Spacing should be consistent with the allowable deviation of norms.
螺栓孔孔距的允许偏差应符合规范的规定。
What is the allowable deviation from straightness for a 40 foot long primary truss member?
对40英寸长的主珩架构件允许的直线度偏差是多少？
A, the installation quality is poor, and not much beyond the allowable deviation, timely adjustment.
安装质量差，超出允许偏差甚多，又未予及时调整。
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