Analysis the basic factor of influencingquantity of expansion joint, including the seismic load and wind load, the calculating formula and measure of expansion amount.
分析桥梁伸缩装置伸缩量的基本影响因素，包括地震荷载和风荷载，国内外伸缩装置伸缩量的计算公式和方法。
2
Expanded volume was one of the important factors influencing expanded graphite product quantity.
膨胀容积是影响膨胀石墨产品质量的重要因素。
3
Noneffective tillering period, which contributed more than 50% root growth quantity to the accumulated root growth at heading, was the main period influencing root growth accumulation.