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IEC 61745-2017 光纖幾何試驗組校準(zhǔn)用終端圖象分析過程 End-face image analysis procedure for the calibration of...2023-09-01

JB/T 9151.4-1999緊固件測試方法.尺寸與幾何精度.墊圈Method of verification for fastenes - Size and geometry - ...2022-06-14

Effects of process parameters and die geometry on longitudinal welds quality in aluminum porthole di2020-11-11

Fractal Geometry of Particle Aggregates Formed in Calcium Sulfite Slurry2020-11-03

聚烯烴彈性體及其催化體系研究進(jìn)展2020-08-11

導(dǎo)數(shù)的應(yīng)用研究2020-06-12