Put the material need to be analyzed and tested into the top of the screen and screen cover, and then placed inside the base in the earthquake sieve.
将需要分析化验的物料倒入最上层的筛内盖好筛盖，然后安放在振筛机座内。
2
Place the yogurt into the sieve and cover with a cloth.
将酸奶放到滤网上并用布遮起来。
3
The invention relates to a sealed type automobile oil level sensor, comprising a substrate, an external rocker, an internal rocker, an upper cover and a sieve;