The 2 oscillator circuits beneath are well suited for making use of crystal oscillators in collection or parallel method: Higher-repetition-amount and high-electricity picosecond regenerative amplifier dependant on 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 significant ability passively mode-locked picosecond oscilla... https://socialrator.com/story9627053/a-review-of-bulk-crystal-oscillator