但受其周围厚厚的云团(象鼻星云本身)和原恒星周围尘埃的影响，这些原恒星以前无法被可见光波长的探测器所发现。

These were previously undetected at visible wavelengths due to obscuration by the thick cloud (' globule body ') and by dust surrounding the newly forming stars.

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这条链路上的路由器对某种特定波长的光束，只接受从一个方向进入的信号，也只向一个方向发送这些信号。

For certain wavelengths of light, routers along that path would accept signals coming in from only one direction and send them off in only one direction.

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这些激光器产生一个具有波长的光，它不会停止，除非电源被切断。

Those lasers produce one wavelength of light that doesn't stop unless the power is cut.

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