A rubber band can be elongated to several times of its normal length.
橡皮带能拉长到平常长度的几倍。
Each band represents a deviation of one half wave length of the applied light.
每条光带表示所用光的一个半波的波长的偏差。
The rubber band can be stretched out to twice its length.
这条橡皮筋可被拉长两倍。
The rubber band can be stretched out to twice its length.
这条橡皮筋可被拉长两倍。
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