The idea of breaking the engine in using "heat cycles" is a myth that came from the misunderstanding of the concept of "heat treating". Away after about 7-8 runs.

使用“热循环”的观念磨合发动机是荒谬的，这主要是源于，大约运行7 - 8轮后，对“热处理”概念的误解。

youdao

While tubal ligation does sterilize a cat, it does not put an end to the heat cycles and the behaviors that go with them, so it's not a perfect answer to the situation.

但是不会终止发情周期和期间的行为，所以不是一个对此情况的完美解决方案。

youdao

The sun, is also variable over a long term: its heat output goes up and down in cycles, the latest trend being downward.

太阳在长期内也是变化的：它的热量输出在周期中有上升，也有下降，最近的趋势是下降。

youdao

Heat disrupts cows' reproductive cycles, and their milk production goes down, he said.

MSN: Drought may mean fewer, smaller animals at fairs - US news | NBC News

When building on permafrost in northern Quebec, non-profit group Archimede Systems had to take into account the melt-and-freeze cycles of the seasons, the need to insulate heat, prevent condensation, and the necessity to keep the home from melting into the icy ground during a thaw.

FORBES: Arctic Refuge On Stilts--Kangiqsujuaq, Quebec