Unplug the knob can stop cutting. It can be used as one standard single needle lockstitch machine.

拔出旋钮，可停止切布动作，作为一般单针平缝机使用。

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The paper talks about the theory on transforming single needle sewing machine into overedging machine.

简述单针缝纫机改造成包边机的原理。

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This machine is flat-bed sewing operation by single needle and it is suitable for all kinds of leather, synthetic leather, canvas.

本系列高速平缝机械是单针对线锁式线迹平缝机，适用于缝制各种人造革、皮革、帆布、牛仔布等中厚缝料。

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From the valley below, each pier and mast merge to look like a single needle with an elongated eye: Foster's drawings, in fact, depict a thread piercing the eye of a needle.

WSJ: A Concrete Ribbon Through the Clouds | Millau Viaduct | Masterpiece by Joseph Giovannini

Acus has several meanings including a "single-prong hairpin" or "needle and thread, " she says.

WSJ: On Pins and Needles: Stylist Turns Ancient Hairdo Debate on Its Head

So finding a single gene in our DNA is like finding a needle in a haystack.

FORBES: Bringing the Human Genome Into the Doctor's Office