柯林斯英汉双解大词典
minus sign
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1.
N-COUNT A minus sign is the sign - which is put between two numbers in order to show that the second number is being subtracted from the first one. It is also put before a number to show that the number is less than zero. 减号; 负号
双语例句原声例句权威例句
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There's no minus sign problem.
负号没有问题。
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这是一个减号。
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I therefore have to give it a minus sign.
我必须给它，一个负号。
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So, the system does work on the surroundings, hence the minus sign.
系统对环境做功，因此符号是负的。
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You got to understand what the minus sign is doing here.
你们要明白负号在这个式子中的意义
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sa So we have 1 s a, and we're drawing this as having a positive amplitude, but since we have destructive interference we're going to draw 1 s b as having the opposite sign, so we have a plus and a minus in terms of signs.
我们有，我们把这画成一个正的振幅，但因为我们是相消干涉,我们把1sb画成相反的符号，所以我们有一正一负两个符号。
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