This object is hanging on that pin, so the pin — action equals minus reaction — will push upwards.

物体挂在大头针上，这个大头针-，反应等于副反应，会向上作用。

youdao

One reason is found in Adam Smith's famous story of the pin factory. Smith observed that the pin factory was so productive because it allowed workers to specialize.

原因之一从亚当·斯密著名的针厂故事中可见一斑，他发现针厂如此高效的原因是专业化分工。

youdao

In the program below, the first thing you do is to initialize pin 13 as an output pin with the line.

在下面的程序中，首先你要做的就是把利用下面这行代码将13脚初始化为一个输出脚。

youdao

Next,he went to the famous jewelry store, Tiffany's,and bought a tie pin and some brushes with silver handles.

VOA: special.2009.04.11

A kind of a pin used to hold your cloak together, called a fibula, unknown in the previous period.

一种别住披风的别针,称之为扣针,这在之前的时期从未出现过

耶鲁公开课 - 古希腊历史简介课程节选

You take a pin and you stick it through my flesh of my body and I feel pain in my soul, in my mind.

你拿一根针扎我身体上的肉,我的灵魂,我的心灵就会意识到疼痛

耶鲁公开课 - 死亡课程节选

Now connect the middle pin (pin 2) on the female midi connector to ground.

ENGADGET: How-To Control Csound with a Custom Midi Controller: Hardware (2 of 2)

The familiar 30-pin connector powering every iPhone was tossed in favor of a sleeker 19-pin version.

FORBES: A Cloud Economy Innovation: Apple's iPhone Gets Its Own Robot

Images for the Turbo can be found here (pin code TBLF4) and videos here (pin code 3NRKB).

ENGADGET: Specialized Turbo e-bike reaches the US, offers a speed boost for $5,900