Let's call this left hand side, let's call this right hand side.

我们称这个为左手边，称这个为右手边。

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On the right hand side, the work, let's call this left hand side, let's call this right hand side.

在右手边，让我们先在这里,标下标表示左手，这里示右手。

麻省理工公开课 - 热力学与动力学课程节选

So, anything on the left side of the equation is called a reactant, and anything on the right side of the equation is called a product.

在方程的左边的,都称为反应物，在方程右边的,都称为产物。

麻省理工公开课 - 固态化学导论课程节选

Let's divide it up into the two sides, the work going on on the left hand side, my left hand side or your left hand side, and the work going on on the right hand side.

仅仅是功的大小而已，让我们把它分成两部分，左手边功的变化，和右手边功的变化。

麻省理工公开课 - 热力学与动力学课程节选

After an operation to stem the bleeding, she spent five months unable to move her left side or the right side of her face.

BBC: Teenage stroke victim Jess Colborn receives award

Receiving the signal is LG's prototype receiver built around the LG2161 demodulator chip and LG-exclusive 3D formatting circuitry that combines the side-by-side left and right images for seamless viewing without the need for 3D eyewear commonly used for 3D TVs.

ENGADGET: LG's glassesless 3D Mobile DTV eyes on (update: video)

Injury to the left side of the brain will cause a right hemiplegia and injury to the right side a left hemiplegia.

BBC: Two-year-old stroke victim is living with hemiplegia