We can use another form of variable expansion to select a specific substring, based on a specific character offset and length. Try typing in the following lines under bash.

可以根据特定字符偏移和长度，使用另一种形式的变量扩展，来选择特定子字符串。

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The side lines can be angled or curved, and the offset distance may be negative.

侧线能形成角度或弧度，并且偏移距离可以是负数。

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The irredundant sorting bus encoding method reduces the power dissipation of highly capacitive memory address bus based on the dynamic reordering of the modified offset address bus lines.

提出了一种新的低功耗非冗余排序总线编码方法，通过对改进的偏移地址线的动态重排以降低具有高负载的地址总线的功耗。

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Just as WDI magicians designed a cool way for kids to interact while waiting for Dumbo in the new Fantasyland, the long lines for Test Track are partially offset with design kiosks.

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Moroney believes Pfizer's drug pipeline--which includes drugs for asthma, smoking cessation, cancer and osteoporosis--should offset stiff competition from generic-drug makers in aging product lines.

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"These 36 fold lines were acquired using vibroseis with 23-second sweeps up to 80Hz and a far offset of 12, 045 feet, " said one sent to investors in 1999.

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