纸绝缘铅包的 paper-insulated lead covered
我的书包铅笔和文具盒 My bags and stationery pencil
用皮革包的铅头短棍 black jack
允许使用添加物，如铅粒包，以达到要求的包件总重量，只要它们放的位置不会影响试验结果。
It is permissible to use additives, such as bags of lead shot, to achieve the requisite total package mass, so long as they are placed so that the test results are not affected.
该工艺包括氰尿酸铅的水相合成、 氰尿酸铅的有机包覆和脱水。
The process comprises water phase synthesis of cyanuric acid lead, organic cladding of the cyanuric acid lead and dehydration of the cyanuric acid lead.
每月获得高品质的铅包和一个极好自动应答服务。
Get monthly high quality Lead packages and an excellent auto responder service.
应用推荐