ppm as Pb 重金属
As Pb Unit 重金属
Pb-As 铅砷 ; 砷铅合金
Pb Cd Cr As 微量杂质元素
As-Cu-Pb alloy 砷铜铅合金
Pb-As alloys 铅砷合金
pb and as 铅和砷
However, during the period of circulation use of scrap steel, it causes the content increase unceasingly of the low melting point metallic elements such as Pb in the steel.
但在废钢的循环使用过程中,不可避免地将铅等低熔点金属带入到炼钢炉中。
“I would have loved it just as much if it was a PB and J sandwich , ” she says.
她说:“就算只有涂上花生酱或者果酱的三明治,我也一样喜欢 。”
Greenplum is not offering Hadoop-as-a-service but rather providing a platform of over 10,000 virtual nodes and 24 PB of storage to test Hadoop itself.
Greenplum并不提供Hadoop - as - a - Service,而是提供了一个超过10000虚拟节点和24 PB存储容量的平台,用于对Hadoop本身进行测试。
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