sheilding can-type pump

例句：

1. 1. The shieldingmaterial is designed to protect against radiation.
   这种屏蔽材料旨在保护免受辐射伤害。
2. 2. Thescreener carefully checked each applicant'sapplication form.
   检查员仔细核对了每位申请人的申请表。
3. 3. The filtering process removes impurities from the water beforeit reaches the tap.
   过滤过程在水到达水龙头之前去除杂质。