围网渔船

Packed with ice, they try to catch a few tonnes of the more valuable sort of tuna, known as bigeye and yellowfin, while the bigger purse seiners like the Playa de Bakio, most of which are European, sweep up hundreds of tonnes of less valuable skipjack tuna outside Somalia's waters.

用冰块加以冷藏，渔民设法捕捉数吨售价更为昂贵的金枪鱼，称其为大眼海鱼和黄鳍金枪鱼，而大型围网渔船如Playa de Bakio——大多来自欧洲——则在索马里海域外来回捕捉数百吨售价不是很贵的鲣鱼。

The results showed that the light seiner had decreased continually with the station in marine fishery declining constantly due to development of single trawlers and drift gill net; fishing vessels became large and fishing ground was pushed to deep water,significant development had been achieved in light-source fittings technology; Decapterus maruadsi was dominant in the catch, the percent of Pneumatophorus japonicus increased and Sardinella aurita fluctuated obviously.

结果表明：由于单拖作业和流刺网作业的发展，灯光围网作业持续萎缩，在海洋渔业中的地位不断下降；渔船大型化，渔场向深水推进，灯源配置及集鱼并灯技术取得重大突破；主要渔获物中蓝圆鲹占绝对优势，鲐鱼所占比例有上升的趋势，金色小沙丁鱼年间波动明显，颌圆鲹则快速减少，竹荚鱼近年来产量快速增长。

Not only have fishing vessels increased in number, but large-scale fishing boats have greatly strengthened the ability to catch fish on the distant high seas. For example, the most effective type of net, the purse seine, began to be used in 1982, and by 1991 there were already 44 ships using it to catch bonito, tuna, and other migratory fish. People began to widely consume canned tuna, tuna salad, and tuna rice rolls.

渔船增多，大型渔船更加强远洋捕捞能力，像是最有效率的大型围网是在七十一年开始启用，到八十年代已经拥有四十四组这种捕捞鲣、鲔等回游性鱼类的渔船，於是海底鸡罐头、鲔鱼沙拉、鲔鱼御饭团成为寻常口味。

Without the consideration of indirect benefit of less tangling situations, the installation of pump jet on American style purse seine ships as subsidiary propulsion, small boat power, or maneuvering device, will all delay the balance of cost and benefit for only a slight level.

在全寿期成本效益评估方面，若假设暂不考虑不易绞缠的间接效益，则泵喷推进器安装在美式围网渔船上作为辅助推进、小船推进或方向控制，都对损益平衡只有稍微延迟的影响，其影响不如油价的变动。

MSY is 58~67 thousand tons and fmsy is about 315 vessel groups Meanwhile, it seemed that the resources of Macherel and Scad in the northern fishing ground of the East China Sea had been over-exploited, and the number of light seining vessels increased too fast.

目前，东海北部渔场的鲐鲹鱼资源已有被过度开发利用的迹象，灯光围网渔船发展速度过于迅猛。

First, the series 60 (Cb=0.6) model is used to verify the accuracy of maneuvering derivatives measured by PMM. After that, the same experiment process is applied to determine the derivatives of 1200G/T purse seiner and 730G/T tuna fishing vessel.

首先，吾人利用series 60(Cb=0.6)船模进行实验，以验证PMM仪器所求得各操纵性导数的准确性；然后，针对1200G/T美式围网渔船及730G/T鲔延绳钓渔船，进行PMM实验，求得操纵性导数。

The purse seiners—named for their conical, purse-like nets, which are drawn closed from the bottom—were guided by three spotter aircraft that crisscrossed the sky like vultures.

这些&钱袋&围网渔船——因其圆锥形的，如钱袋般从底开始收起的网得名——由三架排成十字形的如同秃鹫般的飞机负责导航。

The purse seiners—namedfor their conical, purse-like nets, which are drawn closed from thebottom—were guided by three spotter aircraft that crisscrossed thesky like vultures.

这些&钱袋&围网渔船——因其圆锥形的，如钱袋般从底开始收起的网得名——由三架排成十字形的如同秃鹫般的飞机负责导航。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。