There are no dependencies in this diagram. They would normally be shown with a dashed arrow. Or if there are a lot of dependencies, they are sometimes omitted.
这个图解中没有出现依赖关系。这种关系一般用虚线箭头来表示。或者当依赖关系很多的时候，有时候就都忽略掉了。
So if I get rid of these arrows, there's no heat flowing because they're in thermal equilibrium, then I can't have an arrow here.
所以如果我擦去这些箭头，没有热流存在，因为它们处于热平衡，那么这里也不能存在一个箭头。
If bad weather is pernicious to firearms, it is no less so to bows. Rain makes bowstrings slacks, and after a march in the wet arrow-feathers flake off.
如果说坏天气对火绳枪不利，对于弓也好不到哪里去。下雨可以让弓弦松弛，在雨天行军以后，箭羽往往会脱落。
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