positive section resist-bending capacity 正截面承载能力
positive section
积极的部分
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Using the known positive section as the positive criteria, PBS displaces primary antibody as negative criteria.
以已知阳性片作为阳性对照，以PBS代替一抗作为阴性对照。
youdao
My simple tax repair to Section 469 is far easier, and it will have immediate and positive effect on housing.
FORBES: Bring Back Housing By Bringing Back Tax Shelters
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