在这样的时候，反射对您来说就不再是一种行之有效的办法——反射将JV m类结构作为信息源使用，因此它仅对已由JVM装载的类起作用。
In these cases, reflection won't work for you — reflection USES the JVM's class structures as the source of information, so it can only work with classes that have been loaded by the JVM.
比较简单而且有效的方法就是找一些起作用的事去做，并且要多做这样的事。
The simpler and more effective way is to find the few things that are working and do more of that.
由于在成员项所包含的内容出现在较大型的结构之前，成员项必须是有效对象，所以最简单的递归继承方法不起作用。
Since member items need to be valid objects prior to their inclusion in larger structures, the simplest recursive descent approach would not work.
都说热牛奶里含有褪黑素有助睡眠，其实一杯牛奶里的有效成分少的可怜，基本上不起作用，但它多少还是有舒缓的作用。
Supposedly warm milk contains melatonin and trytophan and so helps induce sleep, but in fact, a glass of milk doesn't contain enough to have any effect. But it's still a soothing drink.
一时间，人们对于“火罐”疗法的兴趣激增。大家都在好奇这是否真的有效以及它是如何起作用的。
All of a sudden, interest in cupping therapy has spiked. People are wondering whether it actually works and how it works.
佩尼·亚菲耶尔解释称，由于一部电梯的寿命在25年左右，我们大可以认为，就算大多数电梯的“关门”键都是不起作用的，但“开门”按键是有效的。
Penafiel explains since an elevator's lifespan is around 25 years, it is safe to say that a majority, if any, do not have a functioning 'close' button but the 'open' button works when it is pushed.
在中国，声誉机制对控股股东基本不起作用，保护小股东权益的最为有效的措施是完善相关立法并加大执法力度。
In China, reputation mechanism is not in effect, and the most effective measure to protect the interests of the separate shareholders is the perfection and enforcement of the relevant legislation.
众所周知，完全微分pid的微分作用只持续一个周期，微分作用相当于不怎么起作用，从而不能达到有效超前控制误差的目的。
As we all knew, the differential action of the complete differential PID controller had nearly no effect as which last only one period, so that the advance control of error can't be achieved.
如果没有这种可以快速输送氧气的方法，昆虫这些可以飞行的肌肉组织几乎不能有效地起作用。
The flight muscles of insects could not function nearly as effectively without such a quick means of oxygen delivery.
精确分配的顺势成分能安全有效的起作用并且无副作用。
Precise levels of homeopathic ingredients work safely and without side effects.
烟酰胺是一种抗氧化剂，它能有效地预防细胞和细胞膜免去自由基的损伤，可消除炎症中起作用的超氧阴离子自由基。
Nicotinamide, an antioxidant, can efficiently protect cells and cell membrane from damage by free radicals and scavenge super-oxide radical(O-2) participating in inflammatory process.
烟酰胺是一种抗氧化剂，它能有效地预防细胞和细胞膜免去自由基的损伤，可消除炎症中起作用的超氧阴离子自由基。
Nicotinamide, an antioxidant, can efficiently protect cells and cell membrane from damage by free radicals and scavenge super-oxide radical(O-2) participating in inflammatory process.
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