Therefore, if the collector runs before line //2 attaches a strong reference to the re-created object, the object is lost and wr.get() returns null.

因此，如果收集器在行 //2 在重新创建的对象上施加一个强引用之前运行，对象就会丢失， wr.get() 则返回 null 。

youdao

How can P2 and P3 reference a temporary table declared in P1 without re-declaring it themselves?

P2和P3又如何能引用P 1中声明的临时表而无需再重新声明呢？

youdao

The use case models can be used as reference for new projects seeking re-use beyond the lifetime of a single delivery project.

用例模型可以作为新项目的参考，寻求单个交付项目生命周期之外的重用。

youdao

How to go from one reference point to the other with this property. This property, f which we're going to call f.

这两个参考点插值,得到不同温度时工作物质的特性，我们把这一特性记做。

麻省理工公开课 - 热力学与动力学课程节选

If you're an inertial observer, then in your system of reference, objects left at rest will remain at rest.

如果你是惯性观察者,那么在你的参考系内,静止的物体会保持静止

耶鲁公开课 - 基础物理课程节选

The lowest possible temperature in the Celsius scale is minus 273.15 degrees Celsius. So that begs the notion of re-referencing our reference point, of changing our reference points.

在摄氏温标中,绝对零度是-273。15摄氏度5,这样，我们需要重新定义参考点,将零度的参考点取在绝对零度处，而不是0摄氏度处。

麻省理工公开课 - 热力学与动力学课程节选

You know, the data that we're going to get tomorrow is a reference from the first 10 or 12 days of September.

CNN: Treasury Secretary Paul O'Neill

We're talking here about 800 pounds of sculptural reference in welded stainless steel.

FORBES: The Sub-Zero PRO 48 puts the cool in cold storage.

"Jenna and Barbara, they're just a mess, " she added in reference to the Bush daughters.

CNN: Three presidents gather for Bush portrait unveiling