Copper was reduced from 20 mg/l to below detectable limits by sulfide precipitation from a gold-ore extraction wastewater . 用硫化物沉淀法可將金礦抽提廢水中的銅含量從20毫克升降到可檢測(cè)標(biāo)準(zhǔn)以下。
Analysis of effect of the movement of nuclear material on the minimum detectable limit of the radiation detector array using mc method 方法計(jì)算分析核材料移動(dòng)對(duì)輻射探測(cè)器陣列探測(cè)下限的影響
The minimum detectable limit of the nuclear radiation detector array is an important technic criteria to judge whether the detector satisfies the detecting requirements or not 摘要核輻射探測(cè)器陣列的探測(cè)下限是判斷其是否符合探測(cè)要求的重要技術(shù)指標(biāo)。
The detection of moving nuclear material is more difficult than that of static one ( namely , the minimum detectable limit of moving nuclear material is lower than that of static one ) 從定性的角度易知,由于核材料移動(dòng)時(shí)比靜止時(shí)的探測(cè)下限低而更難以探測(cè)。
This study adopts the monte - carlo general software - mcnp to compute and analyze the effect of movement of the nuclear matter on the minimum detectable limit of the nuclear radiation detector array 文章通過(guò)建立蒙特卡羅模型并應(yīng)用通用軟件mcnp程序分析計(jì)算核材料的移動(dòng)對(duì)核輻射探測(cè)器陣列探測(cè)下限的影響。
Every living thing has a physical boundary that separates it from its external enviroment . beginning with the bacteria and the simple cell and ending with man , every organism has a detectable limit which marks where it begins and ends . a short distance up the phylogenetic scale , however , another , non - physical boundary appears that exists outside the physical one 每一種生物都有一個(gè)可使之與外界環(huán)境分隔的邊界,從細(xì)菌到單細(xì)胞到人,每一個(gè)有機(jī)體都有一個(gè)可探測(cè)到的邊界用以界定其起止.然而,當(dāng)上升一點(diǎn)兒到系統(tǒng)進(jìn)化發(fā)育水平,則發(fā)現(xiàn)另有一個(gè)存在于有形的物理邊界之外還有無(wú)形邊界