Gray powder metal, pure, without any visible inclusions and oxidation color.
灰色粉末状金属，纯净、无肉眼可见夹杂物及氧化色。
Without any visible decision making at a higher level, it chooses a new nest site, signals workers to begin building, and governs itself.
在没有上级作出任何可见决策的情况下，蚁群选定一个新的地点，发出信号让工蚁开始建巢，然后就开始进行自我管理。
The effect, for viewers a few metres away, is a lifelike, full-sized 3-D moving image of a person that appears to float in space, without any visible screen.
如果观众站在几米以外的话，就可以看到一个真实大小的3D幻象漂浮在空中，而看不见屏幕。
Or, is it actually a smooth curve without any corner, but we don't see it because it's too small to be visible on the computer screen?
或者，它实际上是一条光滑的没有棱角的曲线？，可是我们看不到，因为电脑屏幕太小了？
Any changes made to these files will immediately be made visible to viewers, without any work on your part.
访客能够立马地看到这些文件中发生的任何变化，不包括你所执行的内容。
Composite structure is left visible on purpose, without using plaster, paint or any cladding material in the inside and the outside.
混合结构被特意显露出来，而不使用石膏、涂料或者其他材质覆盖室内外表面。
The head of the comet remains quite bright and easily visible to even city observers without any optical aide.
彗星的彗核仍然非常明亮，因此不需借助任何设备，用肉眼就可以看到。
UV-visible studies show aqueous dispersion of magnetite formed by using 1% PVAP solution is stable at least for four weeks without any detoriation of particle size.
可见-紫外光研究表明，使用1%PVAP溶液配置的磁铁矿水分散系，能够在至少4周时间里保持颗粒大小的稳定不受改变。
A video display and a video display system capable of performing visible light communication without causing any trouble in a video image displayed at a predetermined frame rate.
本发明提供一种影像显示装置及影像显示系统，对以指定的帧频显示的影像不会产生影响而可以执行可见光通信。
A video display and a video display system capable of performing visible light communication without causing any trouble in a video image displayed at a predetermined frame rate.
本发明提供一种影像显示装置及影像显示系统，对以指定的帧频显示的影像不会产生影响而可以执行可见光通信。
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