Homeostasis is the state of maintaining a constant composition of blood.
平衡是保持血液中成分稳定的状态。
The constant composition method was used to study the kinetics of demineralization on dentine crystal, hydroxylapatite and tooth enamel.
应用等组分晶体生长方法 ，研究了牙本质晶、羟基磷灰石、釉质晶脱矿动力学。
Compared with infant milk powder, ready-to-feed infant milk has many advantages, such as no need to dilute, constant composition, east to use, safe and hygienic, and so on.
与婴儿奶粉相比，液态婴儿奶具有很多优点，如勿需冲调、浓度恒定、喂食方便、安全卫生等。
Compared with infant milk powder, ready-to-feed infant milk has many advantages, such as no need to dilute, constant composition, east to use, safe and hygienic, and so on.
与婴儿奶粉相比，液态婴儿奶具有很多优点，如勿需冲调、浓度恒定、喂食方便、安全卫生等。
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