tangent adj. 1.接触的。 2.【数学】切线的,相切的;正切的。 3.离题的。 n. 【数学】切线;切面;正切(线);正切尺,瞄准表尺;〔美口〕(铁路的)直线区间。 tangent elevation 瞄准角。 a tangent scale [sight] 正切尺,瞄准表尺。 fly [go] off at [in, on, upon] a tangent (思想)忽然转变;突然越出本题;突然改变话题[做法]。 fly off at a tangent into outside matters 突然离开本题说些不相干的题外话。
modulus n. (pl. -li ) 【数、物】模数,模量;系数。 a modulus of elasticity 弹性模量。
If asphalt concrete specimen is in stabilization by exert confining stress before the static triaxial test , it is then found that under the condition that time is long enough , the volume of the specimen will shorten gradually and stable around a fixed value , and the amount of compression is essentially the half of the volume of void itself . it is also found that in stabilization by exert confining stress the linear phrase will be shorten in the figure of the static triaxial test of specimen , while the initial tangent modulus will be augment . 3 在进行静三轴试验以前先对沥青混凝土试件进行围压稳定,发现在时间足够长的条件下,试件的体积会逐渐缩小,并逐渐稳定在某一定值,其压缩量基本上为其本身孔隙体积的一半;经围压稳定后的试件静三轴试验曲线上的线性阶段明显缩短,而初始切线模量增大。