Radioactive series: Any of four sets of unstable heavy atomic nuclei that undergo a series of alpha decay and beta decay until a stable nucleus is achieved.

放射性系：四組不穩(wěn)定的重原子核亚洲一线黄色，通過一系列α衰變和β衰變直至達(dá)到穩(wěn)定的核為止。

Though beta decay is in general a slower process than gamma or alpha decay, beta particles can penetrate hundred s of times farther than alpha particles.

雖然與γ衰變或α衰變相比一级又大爽又黄的免费毛片，β衰變是一個(gè)較慢的過程欧美日本天堂久久综合，但β粒子的穿透距離要比α粒子的大幾百倍。

Baby bottle tooth decay can be said of children's serious tooth decay, its causes and adults in general similar to tooth decay, but also has its special formation background.

奶瓶性蛀牙可說是幼兒的嚴(yán)重蛀牙草女人网站，其原因和大人一般蛀牙類似激情图片小说网站，但也有其特殊形成的背景。

According to the Weisskopf-Wiger theory, the spontaneous emission decay in the free space is following an exponential decay law with the constant decay rate.

在第二章中欧爱爱爱网，主要研究了多層結(jié)構(gòu)中二能級(jí)原子非馬爾科夫自發(fā)衰減過程的記憶函數(shù)欧美国产综合。

This study examined the alumina ceramic membrane to deal with high turbidity water flux changes in the law of decay was found in the early running flux decay rapidly, the latter tends to slow decay, a linear decline in the overall. 51qikan.

Key words： high-alumina ceramic membrane separation of water turbidity摘要：本實(shí)驗(yàn)研究了氧化鋁陶瓷膜處理高濁度水時(shí)膜通量衰減變化規(guī)律2av天堂网在线观看，發(fā)現(xiàn)運(yùn)行初期膜通量衰減很快网站黄se，后期衰減趨于平緩，總體成線性下降亚洲va成无码人在线。

The experimental results revealed that 60% of cell decay in a nitrifying system was caused by activity decrease and 40% was caused by cell death. In a heterotrophic system, however, activity decrease was responsible for 80% of cell decay, and the other cell decay for 20% was caused by cell death.

結(jié)果表明国产在线无码制服丝袜无码知名国产，硝化系統(tǒng)細(xì)菌在衰減過程中由細(xì)胞活性降低引起的衰減約占60%，由細(xì)胞死亡引起的衰減約占40%黄色网站久久影院；而在異養(yǎng)系統(tǒng)中由活性降低引起的衰減和由細(xì)胞死亡引起的衰減分別為80%和20%360毛片视频AA。

In the BNR system (SRT=15 d), the cell death was responsible for 45% of the total cell decay for nitrifying bacteria, and thus the activity decay accounted for 55% of the total cell decay.

在BNR系統(tǒng)中（SRT=15 d），硝化細(xì)菌在衰減過程中由細(xì)胞死亡引起的衰減約占細(xì)胞總衰減的45%黄色网站在线浏览观看，由活性降低引起的衰減約占細(xì)胞總衰減的55%男女猛烈无遮挡羞羞视频。

This paper presents a new chlorine decay model adaptable to the real multi-source network, using Epanet-msx simulation module, comparing the differences in the concentration of chlorine caused by using the same or different chlorine decay rate coefficient of the treated water from different water plants, and then taking the discrepancy of the chlorine decay rate coefficient into consideration will be able to reflect residual chlorine concentration and changes in the network more realistically.

通過建立符合實(shí)際工況的多水源余氯衰減模型，運(yùn)用Epanet-msx水質(zhì)模塊進(jìn)行模擬運(yùn)算亚州艳情网站，對(duì)比不同水廠余氯衰減系數(shù)同一化處理和差異化處理對(duì)管網(wǎng)余氯濃度造成的差別日韩在线主播福利影院AV，可以看出差異化處理將能更真實(shí)地反應(yīng)管網(wǎng)中余氯濃度的分布和變化情況。

There are remarkable differences among different succession community of the fallen tree and snag in terms of their volume and decay degree and decay degree of the fallen. The distribution trend generally abides by the rule of increasing with the succession. The decay degree obeys normal distribution.

通過研究表明：長江上游暗針葉林生態(tài)系統(tǒng)的CWD總量是101.74 m3/hm2国产小视频在线播放，它的組成體--倒木和站桿在不同演替階段的容積和腐爛程度是明顯不同的亚洲图库日韩在线专区，隨演替遞進(jìn)，程度加大免费Aⅴ无遮拦日本在线观看，分布呈正態(tài)分布狂野欧美。

M 3/hm 2. There are remarkable differences among different succession community of the fallen tree and snag in terms of their volume and decay degree and decay degree of the fallen. The distribution trend generally abides by the rule of increasing with the succession. The decay degree obeys normal distribution.

通過研究表明：長江上游暗針葉林生態(tài)系統(tǒng)的CWD總量是 10 1 74m3/hm2 ，它的組成體———倒木和站桿在不同演替階段的容積和腐爛程度是明顯不同的视色在线，隨演替遞進(jìn)色色色色色色色色色人人人，程度加大，分布呈正態(tài)分布农村妇女一级特黄大片。