Condoms are an effective method of birth control if used with care.如果使用得当，避孕套是很有效的避孕手段。Light colours provide an effective backdrop for pictures or a mirror.浅色是挂放图画或镜子很有效果的衬托。Women are sometimes seen to be less effective ...
MFM is an effective method to study magnetic domains and research magnetic materials.本文利用磁力显微镜研究纳米尺度磁畴的检测方法.Spacers make your child's inhaler easier to use and more effective.储药罐可以简化孩子用药,因此更为有效.Recent studies sugges...
Eskimoes form igloos out of blocks of ice.爱斯基摩人用冰块砌圆顶冰舍.Now suppose there are 100 igloos arranged in a rectangular grid.现在,假设有100座冰屋排成长方格形状.Igloos are usually dome - shapedand are made of large slabs cut from compacted s...
Blower be protected off mote , low noise , avoid mote drop in raw.隔尘、静音风机 、 间绝进入原料尘埃, 确保原料精纯度.You are protected instantly if a thief misuses your credit card.如果小偷盗用你的信用卡，你的卡会立即受到保护。The country’s car industry is so strong...