The two oscillator circuits beneath are ideal for utilizing crystal oscillators in series or parallel mode: Large-repetition-price and high-electric power picosecond regenerative amplifier determined by just 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 large ability passively mode-locked picosecond oscillator determined by ... https://bookmarkusers.com/story18777614/the-single-best-strategy-to-use-for-bulk-crystal-oscillator