But sound waves coming off the front of the wings and the sound waves coming off the back of the wings are out of phase with each other.
但是翅膀前面和后面发出的声波彼此不协调。
单词 | are out of phase |
例句 |
原声例句
科学60秒-科学美国人 2019年3月合集 But sound waves coming off the front of the wings and the sound waves coming off the back of the wings are out of phase with each other. 但是翅膀前面和后面发出的声波彼此不协调。 |
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