tackle-block

基本解释

The problem about mechanical efficiency of tackle-block is the key point in junior high school mechanics and also the difficult point.
滑轮组机械效率问题是初中力学中的重点，也是初中力学解题的难点。
This paper puts forward some methods of solving mechanical efficiency of tackle-block, hoping to help students break through difficulties.
本文就有关滑轮组机械效率的解题提出一些解决方法，有助于帮助学生突破难点。
A simple tactic: pick one half-hour block each day in which to tackle all of the small, non-academic tasks that need to get done. Right before or after dinner is a good time.
提供一条简单的策略，每天抽一个半小时时间用来处理这类非学科类但必须完成的小任务，而晚饭前后是个好时机。

There is a management mind-block around the challenges they can legitimately tackle.
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