突变 1.(突然急剧的变化) sudden change; change suddenly; transilience; accident; saltation; revulsion; idiovaviation; jump; abrupt change 认识过程中的突变 a sudden change in the process of cognition; 天气突变。 there was a sudden change in the weather.2.[生物学] mutation 自发突变 spontaneous mutation; 突变体 mutant
发生 1.happen; occur; take place; arise; crop up; chance; befall; come off; come to pass; come about; come up; come what may; be set; turn up; bring to pass:2.germination; occurrence3.-gony; -plasia; -genous; -genesia发生问题。 problems arose. 发生了意外。 something unexpected happened. 发生冲突。 conflicts occurred. 发生了什么事? what has happened?; what's the matter?; what has occurred?; what took place?; what has come about?; has something come up?; what's up with (sb. and sth.)? 机器发生故障。 the machine broke down. 那里发生了强烈地震。 a violent earthquake occurred there. 发生新的困难。 new difficulties cropped up [arose]. 故事发生在1960年秋天。 the story is set in the autumn of 1960. 这里发生了巨大的变化。 tremendous changes have taken place here. 这事发生在河南一个偏僻的农村。 the thing happened in an out-of-the-way village in henan
The orf1 protein of senv - h12 - 1 isolate was consisted of 675 amino acids and 92 amino - terminal amino acids less than senv - h ( ax025838 ) , it had insertion in two sites also . the orf1 protein of senv - h 12 - 2 isolate was 7 amino acids less than senv - h ( ax025838 ) because of deletion . because the first start code was mutated , the orf2 protein of senv - h 12 - 2 isolate started from the second atg code , so that it was 7 amino acids less than senv - h ( ax025838 ) from its n - terminus 两个senv - h亚型分离株的情况与已发表的博士学位论文: sen病毒分子病毒学和流行病学研究对sen琴h ( ax025838 )株分析的结果有所不同: senv - h12一1分离株的orfi仅由675个氨基酸组成,比senv - h ( axo25838 )的orfi少n一末端的92个氨基酸,此外在2个位点上还存在插入: senv - h12一2分离株在一些位点上的缺失造成o盯1蛋白比senv - h ( axo25838 )少7个氨基酸,由于第一个起始密码子发生突变,采用位于下游的第二个起始密码子使得o即2蛋白比senv - - h ( axo25838 )少n一末端的7个氨基酸。
The results were as follows : 1 . on the basis of saline water infiltration , the characteristics of movement of soil water and salt under different cumulative infiltration were studied . the results indicated that when the salinity of the infiltration water was 3g / l , the top soil was desalinized and salt accumulated at the wetting front 通过对不同入渗水量下土壤水盐运移规律的室内模拟试验研究,结果表明利用矿化度为3g l水入渗后,土壤从上至下逐渐脱盐,上层土壤含盐量略低于土壤初始含盐量,中间土层基本保持土壤初始含盐量值,但湿润锋附近发生突变,含盐量达最大值。
Although fuzzy inverter air - conditioner , compared with the traditional air - conditioner , has been proven to be more effective in complex , time - varying and uncertain control system , it has a main problem , that is , its control parameters are set by expert ' s experience beforehand , mostly under standard environment . when indoor environment changing suddenly , the fuzzy inverter air - conditioner are controlled sharply at set member functions and control rules . it will have a great effect on comfortability of human 但是,由于隶属函数和控制规则的获取往往依赖于专家经验,专家经验正确与否直接影响空调控制效果,同时隶属函数和控制规则一旦确定,当环境温度发生突变时,空调器仍按照既定的隶属函数和控制规则进行突变,中间没有一个过渡区,这样不但会出现控制输出突变情况(忽上忽下)浪费能量,而且使人感到不舒适。