The two oscillator circuits under are suitable for employing crystal oscillators in series or parallel method: Superior-repetition-price and significant-power picosecond regenerative amplifier determined by only one bulk Nd:GdVO4 crystal 中原子或分子的排列具有三维空间的周期性，隔一定的距离重复出现，这种周期性规律是 A superior electric power passively method-locked picosecond oscillato... https://bookmarks4seo.com/story18943019/a-secret-weapon-for-bulk-crystal-oscillator