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SY/T 5955-2018 定向井井身轨迹质量 The trajectory quality of directional wells2024-02-24

KS F ISO 17497-2-2017 Acoustics. Sound scattering properties of surfaces. Part 2 : Measurement of the direc...2023-10-29

DIN EN ISO 21225-2-2019 Plastics piping systems for the trenchless replacement of underground pipeline netw...2023-08-10

DL/T 5776-2018 水平定向钻敷设电力管线技术规定 Technical regulation for laying power pipes by horizontal dire...2023-07-14

DIN EN 2850-2018 Aerospace series - Carbon fibre thermosetting resin - Unidirectional laminates - Compressi...2023-06-15

GB/T 39831-2021 液压传动规格02、03、05、07、08和10的四油口叠加阀和方向控制阀夹紧尺寸 Hydraulic fluid power...2023-06-15

BS EN ISO 21225-2-2018 Plastics piping systems for the trenchless replacement of underground pipeline netwo...2023-06-11

EN 2850-2017 Aerospace series. Carbon fibre thermosetting resin. Unidirectional laminates. Compression test...2023-05-14

GB/T 17980.127-2004农药田间药效试验准则(二)第127部分;除草剂行间喷雾防治作物田杂草Pesticide-Guidelines for ...2022-06-08

GB/T 19361-2021电火花线切割机床（单向走丝型）精度检验Wire electrical discharge machines（unidirectional traveling...2022-03-14

Modeling of Microstructure Evolution during Directional Solidification Process2020-11-10