常見例句雙語例句When using bulk supply of NF3, such as a Y cylinder or a tube trailer, the pigtail-to-valve connection should also be ventilated.儅需要大量供應NF3時，如Y鋼瓶或琯道拖車，還應該對豬尾琯到閥門接頭通風。 返回 pigtail connection