Continuous smoking and progression of arterial stiffening : a prospective study .
前瞻性研究：持续吸烟与动脉僵硬的进展。
Now america 's stance is stiffening spines elsewhere .
如今美国的强硬姿态让各国政府都挺起了腰杆。
Material used for stiffening something .
用于加硬物体的物质。
The analysis on effect of base plate with stiffening rib in transmission towers .
输电铁塔塔脚底板加劲肋影响分析。
He performed the first space walk on his mission , but experienced both air leaks and material unexpected stiffening -- the latter of which made cramming himself back in the capsule a very near thing .
