绝缘软管。第3部分：各种型号软管规范。第343至345篇：无涂层可扩张编织的乙烯三氟氯乙烯纤维软管。
Flexible insulating sleeving - Part 3: Specifications for individual types of sleeving; Sheets 343 to 345: Expandable braided ethylene chlorotrifluoroethylene (E-CTFE) textile sleeving, uncoated.
只有当将要涂敷的表面清洁，干燥且无空气污染时，才可以进行补口涂敷，这些因素都可能影响补口涂层的质量。
Field joint coating shall be performed only when the surfaces to be coated are clean and dry, and in the absence of airborne contamination that can affect the quality of the joint coating.
切削试验表明：具有梯度结构涂层硬质合金刀片的切削性能比无梯度结构涂层硬质合金刀片的切削性能更为优良。
The cutting tests demonstrate that the cutting property of the coated cemented carbide with gradient structure is much better than those without gradient structure.
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