查询词典 porcupine fish

The feeding and excretion of three little fishes (Hemiculter. leucisculus, Tilapia. aurea and Cirrhinus. molitorelld) was studied and their effect on water quality of Qiankeng reservoir in Shenzhen City Around the topdown effect of fish was also studied. Based on the analysis of their stomach contents, their diet composition was assayed. The three fishes" feeding rhythm in cage and their rate of digestion indoor were looked into, and their daily ration was estimated through the method of daily average fullness index. Using the spectrophotometer, the content of chlorophyll a in the stomach was measured, and the feasibility of taking the chlorophyll a as an index of measuring the feeding of fish on phytoplankton was studied. Adopting the national standard method, the effect of the three fishes" excretion on total nitrogen, total phosphorus, CODMn, pH, turbidity and conductivity coefficient was surveyed. The effect of feeding and excretion offish on water quality was discussed and the results revealed as follows:H.

围绕鱼类的下行效应，本文以深圳茜坑水库三种小型鱼类Hemiculter leucisculus罗非鱼Tilapia.aurea和鲮鱼Cirrhmus.molitorella为研究对象，以胃含物分析为基础，分析了三种鱼类的食物组成；调查了网箱中自然状态下三种鱼的摄食节律，在室内调查了三种鱼的食物消化速率，运用日平均饱满指数法计算出三种鱼的日粮；采用分光光度法测定了鱼体肠叶绿素含量，探讨了叶绿素作为鱼类对浮游植物摄食量衡量指标的可行性；采用国家标准的水质测量方法，测定了鱼类排泄对总氮、总磷、高锰酸盐指数、pH、浊度和电导率的影响量。

Review of the Guidelines 35 Annex 1 Membership of Working Group 36 Annex 2 Fish Species under Family Gempylidae 38 Annex 3 Fish Species under Order Gadiformes 40 Annex 4 Different International Practices in Handling "Oilfish" 59

指引检讨 16 附件 1 工作小组成员名单 36 附件 2 蛇鲭科鱼 38 附件 3 鳕形目鱼 40 附件 4 国际间在处油鱼＂的同做法 59

Bacon old, manual to grind bean, vegetables, wild fish,grilled fish, roasted rabbit, Kaoquan Yang, and so on.

老腊肉，手磨豆花，野菜，野生河鱼，烤鱼，烤兔，烤全羊等。

Not many foods naturally contain vitamin D. Foods high in these this vitamin in olein include oily fish , such as salmon, tuna and micro mackerel , and fish liver oils.

食物中含有天然维他命D的不多，食物中含有高量维他命D的包括油脂较多的鱼类，像是鲑鱼、鲔鱼、鲭鱼以及鱼类肝脏油脂。

"Bald eagles snatch fish at the water surface, rob osprey of fish, and eat carrion."

白头海鵰常掠过水面捕鱼，并抢夺鹗抓到的鱼，也吃腐肉。

The team observed 34 kinds of far ocean fish and found that in the process of ocean warming from the cooler period during 1951 to 1976 to the warmer period during 1977 to 1998, twenty-five kinds of fish were observed ostensive increase of volume.

研究人员探讨34种远洋鱼类，发现在从1951-1976年这段寒冷期到 1977-1998年这段温暖期的暖化过程中，有25个鱼种的族群量显著增加。

If deltamethrin be used with prescript dose in paddyfield,it will have no harmful effect on fish breeding in paddy field and nearby fish pond,but will be more harmful to shrimp.

在稻田中按规定的剂量使用溴氰菊酯农药治虫，对稻田养鱼和邻近鱼塘无危害影响；对虾类有较大的危害性。

Spring, the waters clear, Enpa Hao Sen, reed green, a vitality; summer, Lin Ling, pampas grass swaying in the wind, full bloom lotus lake, the lake little white sail, makes summer Italian Dunxiao; fall, Baiyangdian days Gao Qi Shuang pleasant weather, fish, diving face, Xie Fei wei shiang, fish fleet team, the busy fishing; winter, the snow-covered, ice Oyodo with one of Northland scenery, a variety of ice-bed shuttle, as the swallows fly in the air, is a great natural ice rink can be either a clear run.

春季，水域清澈，烟波浩森，芦苇翠绿，一片勃勃生机；夏季，莲菱蒲苇随风摇曳，满淀荷花盛开，湖内白帆点点，使人暑意顿消；秋季，白洋淀天高气爽，气候宜人，鱼跳水面，蟹肥味香、鱼船队队、捕捞繁忙；冬季，白雪皑皑，冰封大淀，一派北国风光，各种冰床穿梭往来，如同燕子在空中飞翔，是一个巨大的天然滑冰场，可任自由驰骋。

Preparing Fish and Wild Game: Fixin' Fish: Panfish: Largemouth Bass: Successful Walleye.

准备鱼类和野生动物游戏：紧俏'鱼：阀门：大口鲈鱼：成功walleye 。

Here has plump shrimp and plentiful fish; this is the world of fish, paradise of birds.

第 60 页鱼虾肥美，水产丰足，这里是鱼的世界，鸟的乐园。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。