Sealed contacts
[電] 密封接觸
?? 詞語組成解析
a. 未知的, 密封的\\n[法] 蓋印的, 經蓋章批準或證實的, 密封的
n. 聯系人；聯絡方式；觸體（contact的復數形式）
??? 情景例句
It's inevitable that he'll find out about it.
他無可避免地會發覺此事。
Is it far?
遠嗎？
from which can be seen the strata the drill has been cutting through.
從中能看出鉆頭所鉆透的地層。