您要查找的是不是：
- The viscous, slippery substance that consists chiefly of mucin, water, cells, and inorganic salts and is secreted as a protective lubricant coating by cells and glands of the mucous membranes. 粘液一种由粘膜细胞或腺分泌的作为润滑保护层的粘滑物质，主要成份为粘液、水、细胞和无机盐
- The viscous,slippery substance that consists chiefly of mucin,water,cells,and inorganic salts and is secreted as a protective lubricant coating by cells and glands of the mucous membranes. 粘液一种由粘膜细胞或腺分泌的作为润滑保护层的粘滑物质，主要成份为粘液、水、细胞和无机盐
- electrical contact protective lubricant 电接触润滑保护剂
- Without some protective lubrication, the glans of the penis may soon begin to hurt as it rubs against the partner's pubic hair. 如果没有具有保护作用的一些润滑剂，因为阴茎头会与性伴的阴毛发生摩擦，可能不久就会开始受损。
- A mother naturally feels protective towards her children. 母亲对自己的孩子自然会悉心保护。
- They netted the fruit trees to protect them from birds. 他们用网覆盖住果树以使其免遭鸟害。
- How can we protect our computer files? 我们怎样才能保护我们的计算机数据？
- A protective covering of bony plates or scales. 护身甲壳保护骨盘或介壳的覆盖层
- He put his arm round her in a protective gesture. 他用一只手臂围住她做出保护的姿势。
- A plastic cover protect the computer. 这台计算机由一个塑料防护罩盖着。
- It's our duty to protect the saplings. 保护树苗是我们的责任。
- A device for applying a lubricant. 润滑器由于加润滑剂的器具
- A decorative or protective covering or cover. 罩子一个装饰性或保护性的罩或盖
- Sweat is the lubricant of success. 汗水是成功的润滑剂。
- Prevention of or protective treatment for disease. 预防对疾病的防止或保护性处理
- A light and its protective or decorative case. 灯罩灯以及它的保护性或装饰性外套
- A protective covering for the knee. 护膝用于保护膝盖的覆盖物
- Drain lubricant to the correct level. 将润滑剂排放到正确的高度。
- In case of flood, the dam can protect us. 在发洪水的时候，大堤可以保护我们。
- The sort of lubricant which we use depends largely on the running speed of the bearing. 我们使用哪种润滑剂，主要取决于轴承的转速如何。
