碎裂指數 的英文怎麼說
中文拼音 [suìlièzhǐshǔ]
碎裂指數
英文
disintegration index-
Failure probability of coarse aggregates ( pfca ) could be a sample index durability evaluation of concrete in compressive strength test, where pfca was the ratio of number of total particles to which of the broken ones of coarse aggregates in the failed faces of a concrete specimen
混凝土抗壓試驗中，粗集料破碎率p _ （ fca ）可以作為混凝土耐久性的一個簡要評價指標，其定義為試件斷裂面上破碎的粗集料顆粒數與暴露的粗集料顆粒總數之比。Exponential phase cultures of the dr rl strain survive exposure to gamma radiation at doses as high as 5, 000 gy without loss of viability or evidence of dna damage induced mutation. 6000 gy of irradiation will induce approximately 200 dna double - strand breaks in dr chromosomes, but it is still able to reconstruct a functional genome from chromosomal fragments without any mutation
指數生長期的r1菌株即使在5kgy劑量的-射線照射后，其生長能力也未受影響， 6kgy -射線照射后染色體基因組產生約200個的雙鏈斷裂碎片，但是其基因組dna經修復后沒有引起任何的突變。
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