您要查找的是不是：
- Let's collect the sap before its consolidation into a hard mass. 让我们在树液坚固成团之前将之收集起来。
- Some pumps and all vacuum cleaners work by suction. 有些泵和所有真空吸尘器都是借吸力工作的。
- Inert separation gel vacuum collective tube 惰性分离胶管
- I must admit I am very fond of collect rare book. 我得承认我很喜欢海内珍本。
- His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
- Her husband's death left a vacuum in her life. 她丈夫的死使她的生活变得空虚。
- Some people are living in a vacuum. 有些人过着与世隔绝的生活。
- It cost me 100 dollars to collect the stamps. 收集这些邮票花了我一百块钱。
- A vacuum cleaner is a handy household tool. 吸尘器是一种使用方便的家庭用具。
- The shop repairs vacuum cleaners. 这家店修理吸尘器。
- She always stay cool, calm and collect in a crisis. 她在危难时总是很冷静、镇定如常、泰然自若。
- The porter turned off the vacuum. 清洁工关掉真空吸尘器。
- His collection of paintings is the most impressive. 他的绘画收藏令人叹为观止。
- No, but I like to collect stamps and coins. 不，但我喜欢收集邮票和钱币。
- The symbol for the speed of light in a vacuum. 表示真空中光速的物理符号
- It's a collection of Chinese jade. 这是收藏的一批中国玉器。
- The council is responsible for refuse collection. 市政局负责清除垃圾废物。
- A collection will be made for the fund. 为筹措该基金将举行一次募捐。
- You are invited to view our autumn collection. 您被邀请参观我们的秋季时装展览。
- Sealed under low pressure or a partial vacuum. 抽空密封的在低压或部分真空状态下密封起来的
