管子: Guan Zhong的: 4次方是 The fourth power of 2 i ...基: base; foundation墩: mound管子基墩: cradle bedding基墩: base block; corner foundation管子的分支: pipe branch管子的胶接: cement joint of pipes管子的接套: swagelock管子的连接: pipe connections openings for管子的排列: distribution of pipe管子的升降: rise and down of pipe管子的一段: a section of a pipe管子的应力: stress-rupture testing of tube柱子的基座: the base of a pillar /column管子的粗接头: upset end joint管子的胶接头: cement joint of pipes管子的喇叭口: pipe socket管子的另一端: the other end of the pipe分子的基因型: dna打入式管子的箍: drive pipe ring管子的横截面积: cross-sectional area of the pipe管子的抗压试验: compression test of tubes管子的连接,用于开孔: pipe connections openings for管子的耐压试验: compression test of tubes