The fourth harmonic is the one you get from the string vibrating in quarters, at 4 Hz. This note is an octave higher than the second harmonic, and so is also called C. (The eighth harmonic will also play C, as will the sixteenth, and the thirty-second, and all the powers of two up to infinity.)
Добровольца оперативно отправили на военно-врачебную комиссию, однако при осмотре психиатра у специалиста появились вопросы относительно вменяемости пациента.
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Then there's TikTok. It's easily my biggest time sink, so that one had to go.
Section 33.16 of the Postgres documentation.
在地面供电领域，传统电网受地形地貌和经济成本制约，在偏远山区、沙漠、海洋等地区架设输电线路投资大、难度高。空间太阳能电站立足天基，视域可完整覆盖地球所有区域和地形。通过微波无线能量传输，这些地区可获得持续稳定的电力供应，有助于推动全球能源普惠。