名词（使衣服等）变硬的材料
动词（使）变硬，（使）强硬( stiffen的现在分词 )
1. 硬挺：丝光: MERCERIZED | 硬挺: STIFFENING | 抗静电: ANTI-STATIC
2. 固化：stiffener 加劲杆;硬化剂 | stiffening 固化 | stiffness 劲性;劲度
3. 固化;硬化：stiffener 加劲杆;硬化剂 | stiffening 固化;硬化 | stiffness 刚度;劲度
4. 加劲：stiffener 加劲材 | stiffening 加劲 | stiffening plate 加强板
1. These include stiffening emission standards, the rise of global integrated vehicle manufacturers and new export possibilities as incomes grow.
2. States are also stiffening penalties for officers who help prisoners get cell phones.
3. Women with PIP prostheses should be wary of deformation or stiffening, the association says.
noun
1. the act of becoming stiff
e.g. stiffening his shoulders, he prepared to advance
2. the process of becoming stiff or rigid
Synonym: rigidifying rigidification