news program lead out  新闻片花

lead lead method  铅铅法年龄测定

lead-lead age  铅同位素年龄

red lead lead tetroxide  四氧化三铅

Lead(IV) oxide (Lead Dioxide， Lead Peroxide)  铅的氧化物

No news is good news  没有消息就是好消息

lead and lead-4% antimony alloy  Ph和Pb-4%Sb合金

lead and lead-antimony alloy  铅与铅锑合金

Lead and lead-free mixed assembly technics  有铅和无铅混装工艺

lead-acid batteries with lead-alloy fiber mesh grid  铅布蓄电池

lead-fiber wound lead-acid battery  铅布卷绕铅蓄电池

Lead-saving technology for lead-acid batteries  铅酸蓄电池节铅技术

line of lead-in and lead-out  引入引出线

1Industry news  行业新闻

2Industry News  行业新闻

a news service  通讯社

a news story  通讯

active publishing news  主动发布消息

Agricultural scientific news  农业科技新闻