compare with relevant process for images, the algorithm describes geometric entities by accurate vector information such as datum mark and entity properties.
these achievements can be regarded as great contributions to the unification of datum mark and scale of isotopic measurements.
这些成果对统一同位素测量的基準和尺度,保证同位素测试数据在国际范围内的可比性起到了巨大的推动作用。
choosing datum mark to calculate the base value of each attribute;
选择基準点,计算基準点的属性基準值;
and give the selection method of the decision-making datum mark when the ship adopt evade method or evade and use rocket depth charge during anti-torpedo process.