The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury
研究內容主要有：廣州市
河涌沉積物及底棲生物體內重金屬含量及評價；汞和硒對劍
尾魚的急性毒性和聯合毒性及安全濃度的評價；汞對劍
尾魚鰓和肝臟中抗氧化系統的毒性，包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用；汞對劍
尾魚組織生理毒性即：汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍
尾魚組織超微結構的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市
河涌沉積物和底棲生物中重金屬含量。
The application of the v - typed tailgate in unsteady flow hydraulic model
型
尾門在
河工模型試驗中的應用
Centralized training is mostly conducted at the training centres located at ho man tin, sai wan ho, tsuen wan and shek kip mei while regular sub - unit training in school facilities in the territory
本隊的綜合訓練多數在何文田西灣
河荃灣石硤
尾的訓練中心舉行，而分隊定期訓練則在本港的學校舉行。
He crept down the bank, watching with all his eyes, slipped into the water, swam three or four strokes and climbed into the skiff that did " yawl " duty at the boat s stern. he laid himself down under the thwarts and waited, panting
他悄悄溜下
河堤，睜大眼睛四處張望，然後潛入水中，遊了三四下，就爬到船
尾那隻「突突」待命的小艇上了，躺在坐板下面，氣喘吁吁地等著開船。
But i reckon it was more than a cat - nap, for when i waked up the stars was shining bright, the fog was all gone, and i was spinning down a big bend stern first
我醒來時，只見星星亮晶晶，迷霧已經煙消雲散，我架的小舟舟
尾朝前，正飛快地沿著一處大的
河灣往下遊走。
A 58 year old man in jionghua who went into a coma after eating a blowfish that his friend caught three days ago miraculously woke up today
一耶五十八歲耶彰化郎三工前因為呷一
尾?朋友掠著耶
河豚了后一直昏迷，想袂到今阿日竟然醒起來。
Directing to the storage character of qitaihe coal sources, using floatation method of nj dense medium centrifugal force not only meets the heeds of quality and amount of producing super activating carbon raw coal and has good separation result. the equipment investment is less and tailmine recovery is easy. it meets the needs of circumstance protection
針對七臺
河煤炭資源的賦存特性，應用nj重介離心力選煤方法，不僅滿足了制備優質活性炭原料煤的質量和數量要求，而且分選效果好，設備投資少，
尾礦物回收容易，滿足了環保要求。
New records of fissidens hedw from henan province
河南鳳
尾蘚屬植物新記錄
Hebei province ascends the long neck hair tail production factory, while the reform and open policy spring breeze, the company scale unceasingly expands, the total area 5, 000 square meters, the existing staff more than 100 people, the company strength unceasingly strengthens, becomes a star which stores the livestock product profession, becomes by the foreign trade exportation primarily extroversion enterprise
河北省安平縣騰達鬃
尾製品廠，乘改革開放的春風，公司規模不斷壯大，總佔地面積5000平方米，現有員工100多人，公司實力不斷增強，成為畜產品行業的一顆明星，成為一家以外貿出口為主的外向型企業。
Flow conditions of the harbor basin were studied by using numerical model. the solution can be used in engineering studies and designs
汛期馬
尾附近
河道造床動力以徑流為主，而中枯水期造床動力又以潮流為主。
The impacts of soil and water conservation on river flow and soil - hydrology of jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments have been analyzed by the simulation and on - spot measuring methods according to data of during 1950 ' s to 1990 ' s. the selected catchments of the above four all are in the key area of soil and water conservation on the loess pleatu. the main results are as follows. the trend, reasons and critical year of annual river flow " change have been researched by rank correlation and maximum deviation division
本文以黃土高原水土保持重點區的佳蘆
河、禿
尾河、偏關
河和湫水
河等四條流域為代表，採用定量與定性、模型模擬與實測對比相結合的方法，系統分析了上世紀50 90年代時段內水土保持對
河川徑流及土壤水文的影響，取得主要結果如下：採用秩相關和極差分割等定量評價方法，分析了四條支流徑流量變化趨勢、變化原因及發生明顯變化的臨界年份。
The results showed that each river flow has a tendency to gradual decrease mainly by soil and water conservation in the above four catchments. the critical year of the river flow decrease was 1974, 1974, 1977 and 1974 for jia - lu - he, tu - wei - he, pian - guan - he and qiu - shui - he catchments, respectively. each river flow has been divided into prophase and anaphase period according to the critical year
結果表明：水土流失綜合治理是引起徑流量減少的主要原因之一；從上世紀七十年代以來，四條流域的年徑流量均出現逐年減少的趨勢；在研究時段內，佳蘆
河、偏關
河、禿
尾河和湫水
河徑流量發生趨勢性減少的臨界年份分別為1974年、 1974年、 1977年和1974年。
One exception is tu - wei - he catchment where underground runoff is the primary part of river flow. its runoff season distribution is much uniformity. its runoff amount of july to august accounts is 24 % of the annual runoff amount
但以地下徑流補給為主的禿
尾河，徑流量的季節分配相對均勻， 7 8月份徑流量占年徑流量的24 。
The model can not only separate the effect of soil and water conservation measures on variation of river basin runoff amount
研究表明，在佳蘆和禿
尾河流域，水土保持使流域徑流量平均減少10 % ~ 22 % 。
Design work for another 24 kilometres of new river channels are under way, including the upper reaches of kam tin river, ngau tam mei drainage channel and san tin drainage channel
另外，包括錦田
河上游、牛潭
尾河道及新田
河道共約長24公里的新
河道設計工作，也進行得如火如荼。
These cities include hong kong, macao, guangzhou, shantou, shanwei, heyuan, shaoguan, yangjiang, zhanjiang, haikou and xiamen
這些城市包括香港、澳門、廣州、汕頭、汕尾、河源、韶關、陽江、湛江、海口和廈門。
