To smear solder flux paste or colophony on the PCB board of the dismantlement of BGA, remove the tin of welding plate of PCB board with ferrochromium;

在拆除BGA的PCB板焊盘上涂上助焊膏或松香水，用电铬铁将PCB板焊盘上的锡去除；

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Describing Vegemite as "a quasi-vegetable by-product paste that you smear all over your toast", the US president pronounced it "horrible".

BBC: Kevin Rudd, pictured on 15 September 2011

After graduating from the University of Michigan in Ann Arbor, Thanedar founded his own lab, working with clients to remove carcinogenic chemicals from their products and to formulate new ones, such as the black paste football players smear under their eyes.

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