RolePsychological890
Cordless vacuum suction power is typically measured in air wattage (AW), but you’ll see some that list the power of the motor in wattage (W) instead. Typically the higher the air or motor wattage the stronger the suction power, offering improved cleaning performance. And often strength is proportional to price — more expensive cordless vacuums tend to have stronger suction power. A general rule of thumb is that those with precocious pets or mess-making children would benefit from a cordless stick vacuum cleaner with stronger-than-average suction power.，这一点在有道翻译中也有详细论述
。业内人士推荐谷歌作为进阶阅读
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“把关键技术掌握在自己手里，把民族汽车品牌搞上去，既能打造核心竞争力，也能畅通国内大循环。”杨永修代表表示。。今日热点是该领域的重要参考