surface check

基本解释

Use the zebra command lo check surface continuity.
使用斑馬羅湖檢查命令表麪的連續性。
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It will allow you to read the news in bed, play multiplayer scrabble on any surface, check a recipe in a busy kitchen or view a large-scale Google map.
你可以躺在牀上閲讀新聞、在任何地方玩多人拼字遊戯、在忙碌的廚房中繙閲食譜，還可以查看超大尺寸的Google地圖。
Ortherwise, the eccentric gas anchor, gas lift valve and surface check valve are installed to automatically unload the gas from the deeper layer and annulus between the tubing and the casing.
大氣量時應用偏心氣錨安裝氣擧閥與地麪單流閥兩步卸氣，實現了下部産層和油套環空自動卸氣。
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