isotonic + solution
The doctor recommended an isotonic solution for rehydration.
医生推荐了一种等渗溶液用于补水。
等渗的；与血液等渗的
等张的；等张力的；同音调的；具有相同渗透压。；具有与人类血液相同的溶质浓度。
Having the same osmotic pressure as another solution; specifically, having the same concentration of solutes as human blood.
具有相同渗透压。
Having the same osmotic pressure.
具有与人类血液相同的溶质浓度。
Having the same concentration of solutes as human blood.
具有相等的张力。
Having equal tension.
涉及肌肉在阻力下收缩且肌肉长度变化的运动。
Of or involving muscular contraction against resistance in which the length of the muscle changes. Antonym is isometric. Isotonic movements are either concentric (working muscle shortens) or eccentric (working muscle lengthens). See also Wikipedia:Isotonic (exercise physiology)
具有相同的音调。
Having the same tone.
The doctor used an isotonic saline solution to hydrate the patient.
医生使用等渗盐水溶液为病人补充水分。
用法提示：形容词，修饰溶液，表示渗透压相等。
Isotonic exercises, such as push-ups and squats, help maintain muscle strength.
等张运动，如俯卧撑和深蹲，有助于维持肌肉力量。
用法提示：形容词，修饰肌肉收缩类型，指张力恒定而长度变化。
In music theory, an isotonic scale uses equal intervals between notes.
在音乐理论中，等音程音阶的相邻音符之间使用相等的音程。
用法提示：形容词，修饰音阶，表示音程间隔相等。
The doctor recommended an isotonic solution for rehydration.
医生推荐了一种等渗溶液用于补水。
Isotonic contractions involve constant tension while the muscle changes length.
等张收缩涉及肌肉长度变化时张力恒定。
grammar · medium
易错句子I need to buy an isotonic.
正确表达I need to buy an isotonic drink.
中文常说“等渗饮料”简化为“等渗”，但英语中 isotonic 是形容词，需接名词如 drink 或 solution。
grammar · medium
易错句子Isotonic exercise involves constant muscle length.
正确表达Isometric exercise involves constant muscle length.
混淆 isotonic（等张收缩，张力恒定长度变化）和 isometric（等长收缩，长度恒定）。中文学习者易混这两个运动术语。
grammar · medium
易错句子The isotonic composition of the sample.
正确表达The isotopic composition of the sample.
混淆 isotonic（等渗的）和 isotopic（同位素的），拼写相似且中文翻译易混。
与isotonic混淆：在运动生理学中，isometric指肌肉长度不变的等长收缩，而isotonic指肌肉张力不变的等张收缩。两者都是肌肉收缩类型，容易误用。
与isotonic混淆：拼写相似，但isotopic指同位素相关，而isotonic指溶液渗透压或肌肉收缩，意思完全不同。
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