地珠,同翅目(Homoptera)硕蚧科(Margarodidae)介壳虫。长2~4公釐,球形,色各异(古铜色、红色、金色、奶油色或银色),有虹彩光泽。
第二天上午,日报登载了绿珠的照片,还有一段文字,报道了珠宝店如何幸运地逃过那场抢劫。
The next morning the green beads were pictured in the Daily Newspaper with a paragraph on how lucky they had proved in 6 foiling a raid at the jewellers.
结合工业机器人或自动喷嘴驱动程序,它可以在不产生脉动的情况下使密封剂胶珠连续均匀地流成一条线。
In combination with an industrial robot or automatic nozzle driver, it allows linear application of a consistent bead of sealant without pulsing.
系统地观察了在不同添加玻璃珠粒径和不同添加量的情况下,添加组分玻璃珠的性质对超细颗粒流化特性的影响。
The influence on the fluidization quality of fine particles by added glass beads with different diameter or different quantity has been investigated in detail.
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