The balance sheet is divided into two parts that, based on the following equation, must equal each other, or balance each other out. The main formula behind balance sheets is.
资产负债表根据下列等式分成两部分，两个部分必须相等，或者说相互抵消。
On applying the diffraction theory and with the aid of the reciprocity theorem, an approximate formula for the radiation field of a slot cut in a metal sheet of finite size is derived.
本文应用绕射理论并借助于互易定理，导出了一个在有限尺寸金属平板上割出的一条裂缝的近似辐射埸公式。
A verification experiment on peeling moment formula was made for the separation of sheet metals being adsorbent by liquids.
对被液体所吸附的薄板作了剥离力矩公式验证实验，并据此设计出一种简易的人工剥离薄板工具。
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