The 2 oscillator circuits under are suitable for making use of crystal oscillators in series or parallel manner: Substantial-repetition-price and high-ability picosecond regenerative amplifier based upon 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 ）是有明确衍射图案的固体，其原子或分子在空间按一定规律周期重复地排列。 Nd:GdVO... https://atozbookmarkc.com/story19159313/bulk-crystal-oscillator-for-dummies