The invention discloses a testing device of the volume compression coefficient of freshly mixed concrete under a side-limit condition and a testing method thereof.
本发明公开了一种侧限条件下新拌混凝土体积压缩系数的测试装置及其测试方法。
Air compressor suction certain volume and pressure of the air, and the compression for smaller pressure higher after air output.
空压机吸入一定体积和压力的空气，并将其压缩为体积更小压力更高的空气后输出。
Reduction in herniated disk volume, as disk shrinkage may reduce nerve root Compression.
在椎间盘突出量减少，如磁盘的收缩可能会减少神经根的压迫。
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