Push the tissue into the groove, so it forms the square shape of the groove.
把纸巾压在槽里，这样子可以把槽里擦干净。
A thin groove divides the concrete wall into two, right where the square of the golden rectangle is delimited.
一条细槽按黄金比例将水泥墙一分为二。
Large square table and base with coolant groove.
大方桌和冷却槽的基础。
Magnetic square box advantages: V-groove with a magnetic force can be a fixed measured part, so that more accurate measurements.
型槽带有磁力，可固定被测工件，使测量更加准确。
Magnetic square box advantages: V-groove with a magnetic force can be a fixed measured part, so that more accurate measurements.
型槽带有磁力，可固定被测工件，使测量更加准确。
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