Because temperature rise of the exposedregion must meet the requirement of diffusion experiment, high power density of the incident laser beam is necessary.
要使曝光区温度达到扩散实验要求，必须使曝光区功率密度很高。
2
Insulate electrical current - rubber bands can act as insulators for low wattage electrical current. Wrap a rubber band around an exposedregion of a wire (before the wire is live).
隔离电流-橡皮圈在低电流瓦数下做绝缘体，因此可在暴露电线芯的地方缠上橡皮筋(在不通电的情况下)。
3
The fund, which already has over half of its outstanding loans in the euro zone, would become even more heavily exposed to one region.