If fluxed parts are allowed to stand, the water in the flux will eaporate, and dried flux is liable to flake off, exposing metal surfaces to oxidation.

• 如果允许涂上焊剂的部件处于直立状态，那么焊剂中的水分会蒸发掉，而干燥的焊剂很容易脱落，致使暴露的金属表面容易被氧化。