Acid attacks can happen as a result of plaque bacteria acting on the sugars in our diet, or as a direct result of the acids in food dissolving away the enamel on the surfaces of our teeth.
酸袭击可能发生，由于牙菌斑的细菌作用于我们饮食中的糖，或作为一个直接结果，酸溶解食物上溶掉了在我们牙齿表面上的珐琅。
To clean the biting or chewing surfaces of the teeth, hold the brush so the bristles are straight down on those surfaces.
为了清洁牙齿切端或咬合面(咀嚼食物的那一面)握牙刷是刷毛与这些面垂直。
Other so-called suckermouth armored catfish species use their unique teeth to scrape organic material from the surfaces of submerged wood.
科学家在以往对其它种类胡子鲶鱼进行的研究中发现，它们通常使用造型独特的牙齿从沉入水底的树木表面刮取有机物充饥。
Remember to brush the inside and chewing surfaces of your teeth, as well as your tongue.
切记牙齿的内侧和咬合面都要刷到，舌苔也要刷哦。
Fluoride in toothpaste and in drinking water protects the smooth surfaces of teeth but back teeth need extra protection.
牙膏和饮水中的氟化物能够保护牙齿的表面，但在后面的磨牙需要特别的保护。
The chewing surfaces of back teeth are rough and uneven because they have small pits and grooves.
后磨牙的咀嚼面是粗糙和不平的，因为它们有小的凹陷和沟槽。
Helping the wheel bike secure stable purchase are flexible claws that provide a smooth ride and serve as climbing teeth on steep surfaces.
灵活的机械腿爪提供了平稳的骑车体验，在陡峭的表面充当攀爬齿，帮助轮形摩托获得稳定的黏附力。
Sealants are thin, plastic coatings painted on the chewing surfaces of the back teeth.
牙齿保护胶是一种薄的塑料涂层，涂在磨牙的咀嚼面上。
To transmit motion smoothly, the contacting surfaces of gear teeth must be carefully shaped to a specific profile.
为了平顺地传递运动，齿轮齿的接触面必须精加工成特殊齿廓。
Once you've done all the sides, you can gently use that old back-and-forth motion to clean the top chewing surfaces of your teeth.
一旦刷完了内外两面，轻轻地使用旧式前后移动的方式来清洁牙齿的咀嚼面。
Brush all surfaces of the teeth, including the outer, inner and chewing surfaces as well as the hard-to-reach back teeth and areas around fillings, crowns or other restorations.
牙齿每一面都要清洁到，包括牙齿外面、里面和咀嚼面，别忘了刷难以够到的后槽牙和包括填充物和牙冠在内的修复牙体周围。
Even the most careful brushing reaches only three-fifths of all tooth surfaces. And dental floss can go where no brush has gone before: between teeth, along the gumline.
因为即使最认真地刷牙也只能刷到所有牙齿表面的五分之三，而牙线能够到达牙刷从没到过的地方：牙缝和牙龈线附近。
Milling can produce flat or angled surfaces, groves, slots, gear teeth, and other profiles, depending on the shape of the cutters being used.
铣削可根据所用的铣刀形状分别加工平面或斜面、槽口、缝、齿轮齿及其它型面。
To brush your teeth, put a pea-sized drop of toothpaste on your toothbrush, then cover all the surfaces of all the teeth in your mouth, using the Bass technique.
开始刷牙，把豆粒大小的牙膏置于牙刷上，然后用贝氏(Bass)法涵盖你口腔中所有牙齿的所有表面。
After ultrasonic scaling, the teeth should be polished using to improve the clearness surfaces, polishing paste is the best tool on root surfaces.
经过超声波洁治及刮治后应该对牙齿表面进行抛光可提高其光洁度，牙根面以抛光膏的抛光效果最好。
While colorful shapes stimulate your baby visually, the raised, offset surfaces assist in the eruption of new teeth by gently massaging your infant's gums.
颜色鲜艳的造型，激发宝宝的视觉，通过轻轻按摩婴儿牙龈以安抚出牙疼痛。
It is the purpose of this study to examine the prevalence and distribution of cementicles on different root surfaces of 524 extracted human teeth.
从人体上拔除的524枚牙的牙根表面上检查了牙骨质疣的发生率及其分布。
The constructing principle of the spherical gear teeth base surfaces was specified, and a processing method by which spherical gear teeth base curves were machined was introduced.
介绍了球齿轮齿根过渡曲线的形成原理，以及球齿轮齿根过渡曲线的加工方法。
Under the function of the brushing force, the brush wheels can do rolling and brushing work for the surfaces of teeth and can rotate on the bearing seat.
毛刷轮在刷拭力的作用下对牙齿表面进行滚动刷拭、并在轴承座上转动。
The wire was bonded with directly bonding technique to the labial or lingual surfaces of teeth according to the application steps of light-cure material.
按光固材料的使用步骤，将弓丝粘到牙列片段的唇侧及舌侧。
The wire was bonded with directly bonding technique to the labial or lingual surfaces of teeth according to the application steps of light-cure material.
按光固材料的使用步骤，将弓丝粘到牙列片段的唇侧及舌侧。
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