When brushing your teeth or taking a shower, only let the water run during the rinse stage: turn off the water when brushing your teeth and shampooing.
刷牙或洗澡的时候，只有在冲洗的时候才让水流着：当在刷牙和洗头的时候关掉水龙头。
While primary teeth will at one stage be replaced by the permanent teeth, they are very important for several reasons - including chewing and speech.
虽然乳牙会在某一阶段全部更换为恒牙，他们是非常重要的几个原因，包括槟榔、讲话。
Although he doesn't have teeth, your baby is going through something similar to a teething stage.
虽然他没有牙齿，您的宝宝正在经历类似的一个初期的阶段。
Methods: After preparing specimens of every stage of human developing teeth, immunohistochemical staining of nerve growth factor and its receptor was carried on.
方法：制备人牙齿发育各阶段标本，进行神经生长因子及其受体的免疫组化研究。
RESULTS Proliferating cell nuclear antigen had different distribution in each stage during human teeth development.
结果增殖细胞核抗原在人牙齿发育各阶段具有不同的表达模式。
Since the internal teeth sleeve for the gear coupling is floating with the sun gear in the planetary-stage, coupling gear is made of alloyed steel.
由于齿轮联轴器的内齿套也随行星级中的太阳轮一起浮动，所以联轴器齿轮也采用合金钢材料来制造。
Milk teeth may begin to appear at anytime from five to eight months from birth, and at this stage the baby should be given something clean and hard go bite on.
婴儿出生后五到八个月左右会开始长乳牙，在这一时期应当给他干净结实的东西咀嚼。
Baby tiger at this stage will instinctively bare its teeth, tighten its nose and bark to scare off invaders.
此时的小虎只会本能地紧鼻龇牙，面露凶相，并以尖声的吼叫吓退来犯者。
Baby tiger at this stage will instinctively bare its teeth, tighten its nose and bark to scare off invaders.
此时的小虎只会本能地紧鼻龇牙，面露凶相，并以尖声的吼叫吓退来犯者。
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