However '-' can't be typed by pressing numeric keys.
然而'- '不能输入按数字键。
Tip: The returned array will have numeric keys, starting at 0 and increase by 1.
提示：返回的数组将拥有数值键，从0开始以基数1递增。
Note: String keys will be maintained, but numeric keys will be re-indexed, starting at 0 and increase by 1.
注意：默认使用字符串键，如果要使用数值键则需要重新指定，且从“0”开始以基数“1”递增。
If you enter a time limit with the numeric keys, the timer will give a sound signal when the time limit has been reached.
您通过数字键输入时限，在到了时限后，软件会发出声音讯号来通知您。
Row compression requires the creation of a dictionary which stores a mapping between repetitive patterns or entries and numeric keys.
行压缩要求创建一个词典，它存储重复的模式或条目与数字键之间的映射。
The keys appear to be slightly raised and rounded, almost bulbous, and have nicely contrasting orange labels on the numeric keys and the shift button.
pre按键突起而圆润，近似球面。数字和shift键通过漂亮的橙色于其它按键形成对比。
But conditions aren't usually ideal when using a phone day to day and for many operations a traditional d-pad and physical keys (whether numeric or qwerty) are faster and more satisfying.
但日常使用中条件并不理想，传统方向键和物理键盘(无论是数字键盘还是全键盘)在大多数操作上更快捷且舒适。
Primary keys are stored in $self->{1} and secondary keys in $self->{0}; the numeric constants have symbolic names PRIMARY and SECONDARY that make them more readable in my opinion.
主键存储在 $self->{1} 中而辅键存储在 $self->{0} 中；数字常量具有符号名称PRIMARY和SECONDARY，我个人以为这使它们可读性更好。
The numeric keypad looks like a calculator, but it has some additional symbols on the keys.
数字键区就像一个计算器，但是在按键上还有些额外的标记。
WEP keys can be numeric, alphabetic, or a combination of both.
WEP密钥可以是数字，字母，或两者兼而有之。
Note: If the keys are numeric, all elements will get new keys, starting from 0 and increases by 1. (See example 2).
注意：如果每个元素对应的键是数值型，那么剩下的元素将重新获得新的数值键，且从0开始以基数1递增(见案例2)。
Note: If the keys are numeric, all elements will get new keys, starting from 0 and increases by 1. (See example 2).
注意：如果每个元素对应的键是数值型，那么剩下的元素将重新获得新的数值键，且从0开始以基数1递增(见案例2)。
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