Poor tooth brushing techniques can harm your teeth - if you really scrub your teeth too hard, you will wear the sides of your teeth down, leaving V-shaped defects near the gum margins.
不恰当的刷牙方法会损害牙齿，如果你真的太用力刷牙，就会磨损牙齿边缘，在牙龈缘附近形成V字形缺口。
Under a wide range of P and V value, there are very low friction coefficient and wear, high dimensional stability for coating-metal pairs and no any damage during the test of nylon coating.
涂层在较大的P、V值范围内与各类配副均具有极低的摩擦系数和磨损量以及很高的尺寸稳定性；长期工作过程中，涂层未出现任何破坏现象。
The results show that the wear resistance can be improved by using fine particle, even and high content of V in the alloy.
研究结果表明：合金中V颗粒细小且弥散均匀以及提高V的含量，有利于提高合金材料的耐磨损性能；
PK multiple V-belt is applied as transmission belt to resist wear and abrasion and avoid troubles like belt creep and noise caused by traditional belt transmitting system.
传动皮带采用PK多V皮带，耐磨损， 运转时无传统皮带打滑及噪音的困扰。
Excellent durability and wear resistance with the special U. V. coating.
采用特殊u.v。处理，具有出色的耐磨性和抗冲击性，经久耐用。
All Q. V. P. bags are made with the same material on the top and bottom. This means that the woodworker can now turn the bag over once the top side begins to see excessive wear.
所有真空袋的顶部和底部采用相同材料制造，这表明真空袋顶部出现磨损时，木工可以把真空袋倒过来使用。
If a person is recommended to wear a short neck V-neck dress, round neck long people can wear clothes.
如脖子短的人建议穿V领的服装，长的人可以穿圆领的服装。
Microprocessors monitor tyre wear and brake power on cars. v.
微机检测汽车轮胎的耐用性和制动力。
Therefore, wear low cut blouses or T-shirts with V-necks to highlight your beautiful neck.
因此，带有V字领的上衣或衬衫将会突显你完美的颈部。
Therefore, wear low cut blouses or T-shirts with V-necks to highlight your beautiful neck.
因此，带有V字领的上衣或衬衫将会突显你完美的颈部。
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