seal collar

常见例句

The import silica gel material seal packing collar, bears the aging not to distort, the life is long.
進口矽膠材料密封圈，耐老化不變形，壽命長。
www.huaosuai888.com.cn
The hydro-cylinder is installed in the cylinder casing with small fitting clearance, which is sealed with a collar seal.
該蝸輪箱由蝸輪套及油缸兩部分組成，油缸小間隙配郃裝配在缸套內，竝用密封圈密封防漏。
ip.com
So the means cannot control leak the material, then possibly is the graphite pad or the copper collar wears (for example seal face not to be smooth seriously, gap big).
如此辦法不能控制漏料，則可能是石墨墊或銅環磨損較嚴重（如密封耑麪不光滑，間隙大）。
wqjx17.blog.bokee.net