the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli; "the doctor tested my tonicity" 同义词：tonus, tone,
Tonicity is a measure of the osmotic pressure gradient (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane. It is commonly used when describing the response of cells immersed in an external solution.
例句与用法
1.
The device is manufactured with state - of - the - art technology . it works by vibrating ultrasonic waves to the deeper layers of the skin to restore elasticity and tonicity 中外合资之先进科技杰作，机身轻巧及流线型设计，机件性能良好及耐用，配合美容产品使用，可加强产品之功效。
2.
Berman warrant you love dandle ideal body nutritional requirements custom - made product to supply extra alimentation required tonicity skeleton cum muscle ingredient with 伯曼根据您爱宠理想体态的身体营养需求定做的产品，提供额外营养所需强壮骨骼及肌肉成分。产品未使用高灰质成分，使产品变得美味而又不影响宠物消化健康
3.
Berman warrant you love dandle ideal body nutritional requirements custom - made product to supply extra alimentation equired tonicity skeleton cum muscle ingredient with 伯曼根据您爱宠理想体态的身体营养需求定做的产品，提供额外营养所需强壮骨骼及肌肉成分。产品未使用高灰质成分，使产品变得美味而又不影响宠物消化健康。
4.
It is extremely effective in restoring the skin s elasticity and tonicity , as well as replenishes lost moisture and whiteness . the mask complies with the standards and regulation of the fda u . s . a . and china national health inspectorate . we are currently recruiting agents oem and odm provided 面膜一经使用，便能即时舒缓紧张和疲倦的肌肤，使肌肤回复天然弹性，晶莹亮丽，并可为肌肤深层组织提供丰富的水份和养份，分解黑色素，让肌肤重拾滋润及美白，诚徵代理，可代客oem及odm 。
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