direct observational method
... 交替作业法(Alternate haul/tows method) 直接观察法(Direct observational method) 利用虾类和鱼类行为差异分离兼捕种类的BRD ...
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This paper advances a direct observational method to determine two principal planes corresponding with two principal stresses Belng simple and obvious, this method ean be mastered easily.
本文提出关于平面应力状态单元体上两个主平面与两个主应力对应关系的直观判断方法。
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