water collar的意思|示意

Lab experiments show that such tubing collar is feasible to some degree in preventing corrosion of the screw thread of water cycling pipe, thus extending the service life of water cycling pipe.

经实验室验证，复合接箍对回注水管柱螺纹防腐具有一定的可行性，可以延长回注水油管柱的整体使用寿命。

Color: Honey Water resistant mid-weight cotton woven Point collar with hook-and-bar closure with 8 button double breasted placket;

颜色：蜂蜜防水中等重量棉编织点领钩栏关闭8键双排扣门襟；

The Spotlight GPS sells for $200 and features a water-resistant collar tag.

聚光灯GPS每套售价200美元，带一个防水项圈标签。