According to the research of physiological and biochemical indicators or index, components of soluble proteins, substrate protein of phosphorylation and the activity of protein kinase in low - temperature stress in the leaves of brassica oleracea l., we tried to find the law of the physiological and biochemical response of brassica oleracea l. leaf to low temperature. at the same time, discussion on the signal transduction can also provide further evidences for revealing the mechanism of low - temperature stress. the results are showed as follows : malondialdehyde ( mda ), superoxide dismutase ( sod ), ascorbate peroxidase ( asp ) and peroxidase ( pod ) activities were changed greatly after 0 ~ 30min ' s treating with low temperature
本文以甘藍葉片為材料，通過對低溫5
脅迫下甘藍生理生化指標、可溶性蛋白組分以及磷酸化底物蛋白、蛋白激酶活性的研究，以期找出甘藍葉片對低溫
脅迫的生理生化響應規律，為甘藍露
地越冬栽培防範寒害提供理論指導，同時對低溫
脅迫下甘藍逆境信號傳導進行了探討，從而為徹底弄清低溫
脅迫機理提供進一步的證據，研究的主要結果如下：丙二醛含量（ mda ） 、超氧化物歧化酶（ sod ） 、抗壞血酸過氧化物酶（ asp ）和過氧化物酶（ pod ）活性在低溫處理0 30min發生顯著變化，低溫處理3min后，甘藍葉片內mda含量基本沒有變化，處理5min時出現第一個峰值，達到對照的104 . 10 ， 10min出現低谷，僅為對照的86 . 27 ，隨后再次上升， 30min時超過第一峰值，為對照的113 . 93 。
In an asw mission a platform is tasked to classify, localize, and potentially attack a suspected threat detected by ownship ' s sensors or by sources external to ownship
在一個asw任務里一個平臺的任務是分類、定位和潛伏
地攻擊一個自己船隻的傳感器探測到的或者是外部來源探測到的可疑威
脅。
Awfulness that admonished hester prynne and the clergyman of the day of judgment, then might roger chillingworth have passed with them for the arch - fiend, standing there with a smile and scowl, to claim
誠然，如果那流星照亮了天空，顯現了大
地，並以末日審判來威
脅海絲特白蘭和牧師的話，那麼，羅傑靈渥斯就可以看作是魔王，他怒目獰笑
地站在那裡，等候著來認領他們。
The blaze, 50 miles east of los angeles, spread rapidly along two fronts and late saturday threatened to burn explosively dry forests devastated by drought and bark beetles
位於洛杉磯東面50英里遠的這場大火，正朝著兩端瘋狂肆虐，到上周六為止，嚴重威
脅著當
地的乾燥林
地，這些林
地由於乾旱面臨著被燃燒爆炸危險。
Grassland degradation, desertification, basification pose great threat on ecological balance. slow development of grassland husbandry cause imbalance in our agricultural structure
草
地退化、沙化、鹽堿化對生態平衡造成嚴重威
脅，草
地畜牧業滯后使農業結構失衡。
Site : coxs bazar zone support more than 250 species of water birds and is threatened by shrimp and salt farming
選址：科克斯巴扎爾
地區coxs bazar zone扶養超過250種水鳥，目前正受養蝦業和鹽田的威
脅
For some wetland plants such as reed and cattail, a small quantity of petroleum pollutants did not form deadly menace, their growing tallness was positive correlated with water deepness. therefore, wetland buffer can be constructed to reduce the impact of petroleum pollution and plant adaptive wetland vegetation so as to improve the environment of oil field
結果顯示：濕
地環境對土壤中的石油污染有明顯的降解作用，蘆葦等挺水植物的生長量與積水深度呈正相關，土壤中少量含油並不構成對濕
地植物生長的威
脅。
There was no vulgar bullying, no bravado of any sort, no choleric hectoring, and striding to and fro across the apartment, jerking out vehement commands for bartleby to bundle himself off with his beggarly traps
沒有庸俗的恃強凌弱，沒有任何的虛張聲勢，沒有惱怒的威
脅恐嚇，也沒有在室內大步
地走來走去，氣勢洶洶
地吵嚷著，命令巴特比帶著他那些破爛東西一同滾蛋。
She talked to elizabeth again and again; coaxed and threatened her by turns.
她一遍又一遍
地說服伊麗莎白，一忽
地哄騙，一忽兒威
脅。
The third, later in the 20th century, yugoslavia had lost the especial strategic advantage in the cold war. moreover, with the impact from the upheaval of soviet union and east europe, her system occurred profound transformation, together with politics and economy conjuncture, leading to the state abruption, which caused a series of conflict and threatened the safety and stabilization of the balkan and europe
其三， 20世紀末南斯拉夫失去了冷戰時期在東西方對抗中所享有的
地緣政治利益，自身還在蘇東劇變大潮的沖擊中發生著深刻的體制變遷，與政治、經濟危機相伴而來的民族危機最終導致國家分裂，並引起一系列愈益慘烈的武裝沖突和戰爭，威
脅著巴爾干半島和歐洲的安全與穩定。
The car emitted a large quantity of deleterious exhaust gas in the megalopolis and at the building or mineral sites, which threatens badly the somatopsychic health of inhabitant and breaks the ecosystem equilibrium. being a flowing contaminative source, the automotive vehicles have become the " chief criminal " of air pollution
汽車作為一個流動的污染源，在人口密集的城市和交通發達的工礦
地區，到處散發著大量廢氣，嚴重威
脅著居民的身心健康，破壞著生態平衡，成為大氣污染的「罪魁禍首」 。
Sichuan is one of the agricultural province, locates in the area between the continental climate and oceanic climate, the distribution of precipitation is always disproportional due to the influence of atmosphere circumfluence, the existence of drought and floodwater plus water pollution have produced huge menace to agriculture, water resources utilization, soil erosion and even the life and properties of human being
解決水資源的諸多問題，是擺在全黨、全社會和全國人民面前一項刻不容緩的重大戰略任務。四川作為貧水國的一個農業大省，由於
地處海洋性氣候與大陸性氣候交接
地帶，受大氣環流影響，降水時空分佈不均，水旱災害極為頻繁，尤其是乾旱對農業生產的威
脅最大。
He was thrown roughly to the ground, and dick stood across him, flushed and menacing, with doubled fist.
他被粗暴
地推倒在
地上，狄克緊握著拳頭，滿臉通紅，威
脅地跨在他的身上。
Shading effects of farmland shelter - belt and countermeasures
農田防護林
脅地效應及其解決對策
If we don ' t ignore the bounds and confront the environmental threat together, the earth will perhaps encounter ecological crisis : over half species will be extinct, and as well, our offspring will burden the fatal flood, drought and diseases caused by gloabal warming
如果我們不超越國界，共同面對環境威
脅，
地球將可能面臨生態危機：有半數的物種將消失，我們的子孫也將承受全球變暖所帶來的致命的洪水，乾旱與疾病。
“ climate change is a bit of a different type of challenge but a challenge i believe is the biggest long - term threat facing our world
氣候變化只是其中的一項挑戰，但是我相信這又是一項長期威
脅地球的最大挑戰。
It is explained that separatism, extremism and terrorism and transnational drugs crime and interference outside on central asia through “ color revolution ” constituted the main threatening factors in the safety and stability of the region. the second part analyzed russis ’ s global strategy in its central asia policy. the thired part analyzed effect of the russia ’ s central asia policy on the safety of central asia. though the russis ’ s central asia policy gave a heavy blow to the terrorism and has positive influence
第一部分分析了影響中亞安全的主要因素，認為「三股勢力」 、跨國毒品犯罪及外部勢力通過「顏色革命」對中亞的干預，構成威脅地區安全的主要因素。第二部分簡要分析了俄羅斯中亞政策的調整。第三部分分析了俄羅斯對中亞地區安全的作用，認為俄羅斯在維護中亞地區安全中起積極作用。
