But you can strengthen your legs before you start running by adding two or three leg workouts a week.
但你也能通过每周两到三次的腿部锻炼，在开始跑步前增强你的腿部力量。
Based on magnetic circuit of three leg core transformer, the transient model of the transformer is presented.
以三心柱变压器铁心的磁路为基础，建立了该种变压器的暂态模型。
Based on magnetic circuit of three-leg core transformer the transient model of the transformer is presented.
以三心柱变压器铁心的磁路为基础，建立了该种变压器的暂态模型。
The mathematical model of the strength of the flail block in a three-leg centrifuge was founded through the strength analysis.
通过对三足式离心机甩块的强度分析建立了甩块强度的数学模型。
The sports items included: Touching Stones and Crossing, Three-leg Jumping, Skipping and Running.
比赛项目有：摸石过河、二人三足、跳绳跑。
The sports items included: Touching Stones and Crossing, Three-leg Jumping, Skipping and Running.
比赛项目有：摸石过河、二人三足、跳绳跑。
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