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- Objective: To prevent enamel opaque spot after orthodontic etching. 目的：预防口腔固定正畸酸蚀牙釉白斑的发生。
- Objective：To prevent enamel opaque spot after orthodontic etching. 目的：预防口腔固定正畸酸蚀牙釉白斑的发生。
- Objective:To prevent enamel opaque spot after orthodontic etching. 目的:预防口腔固定正畸酸蚀牙釉白斑的发生。
- Objective： To prevent enamel opaque spot after orthodontic etching. 目的：预防口腔固定正畸酸蚀牙釉白斑的发生。
- Aim: To prevent the fixed-orthodontic etching from acid-eroded enamel opaque spot. 目的:预防口腔固定正畸酸蚀牙釉白斑的发生。
- Conclusion： Fluoride treatments can reduce the incidence rate of enamel opaque spot after orthodontic etching. 结论：氟化处理可降低口腔固定正畸患者釉白斑的发生率。
- Fluoride treatments can reduce the incidence rate of enamel opaque spot after orthodontic etching. 氟化处理可降低口腔固定正畸患者釉白斑的发生率。
- Results：The incidence rate of enamel opaque spot with the treated group is lower than untreated group, there is significantly statistical differences. 结果：经氟化处理的牙齿，釉白斑的发生率低于对照组，有显著性差异。
- The earliest visible change of enamel caries appears as a white opaque spot that forms just adjacent to a contact point.Dentine caries appears brown with formation of cavity. 釉质初期龋呈粉白色或棕黄色斑，表面无缺陷，牙本质龋呈深棕色或灰黑色，有深浅不等的龋洞形成。
- I felt his report was deliberately opaque. 我觉得他的报告故意含糊其词。
- I'm afraid we are in for a spot of trouble. 恐怕我们是一定要遇到麻烦了。
- Earthenware decorated with colorful, opaque glazes. 彩釉饰有彩色、不透明釉料的陶器
- An opaque pigment used when painting in this way. 树胶水彩画颜料作这种画时所用的不透明颜料
- He is hit by a falling tree and killed on the spot. 一棵树倒下来，把他当场砸死了。
- I've always had a real soft spot for him. 我一向对他挺有好感。
- The second part is the high spot of this book. 第二部分是这本书的最精彩部分。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- Luckily there was a doctor on the spot. 幸运的是现场有一位医生。
- This cross marks the spot where she died. 这个十字符号标明她死去的地点。
- Their intentions remained opaque. 他们的意图仍然令人费解。
