1、

It is now necessary to introduce a sign convention for radii of curvature.

现在必须介绍曲率半径的正负号规则.

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2、

So to make things simpler we are using this convention and you just put a minus sign if you are doing physics.

我们只是借用了这个物理概念来简化问题,你算物理题的时候加个负号上去就好了。

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3、

please sign your name on it and pass it to your division governors or me in spring convention.

收到后,请在上面签名,交给部总监,或在春季大会时交给我。

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4、

And the author proves that the linguistics base of the potential and appearance theory lies in the language character of sign, that is the union of convention and arbitrariness from phonetic level, grammatical level and lexical level, the three language subsystems.

并分别从语音、语法、语汇三个语言子系统论证了潜显理论的语言学基础在于语言的符号性特点,即规约性和任意性的统一。

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5、

Urges all States to sign and ratify, accept or approve or accede to the Convention.

敦促所有国家签署和批准 、 接受、核准或加入该公约.

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6、

Symbol is a sign, figure or physical object, the meaning of which is established by convention.

常用的表义符号是由按常规规定其意义的符号, 图案或实物图像构成的.

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7、

Urges all States to sign and ratify, accept, approve or accede to the Convention.

敦促所有国家签署和批准 、 受 、 准或加入该公约.

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