估算

Furthermore, the structure of drift trammel net, set longline of baited hooks and jig and their fishing methods were described.(2)The fishing gears in Hejiang section were divided into drift trammel net, set longline and jig according to the fishery status in Hejiang section."Number of fishing boat day" was selected as the unit of fishing effort.

2根据合江江段的渔业现状，将该江段的渔具分为三层流刺网、饵钓、滚钩和其它偶见渔具四类，以"船·天"作为捕捞努力量的单位，用单位捕捞努力量渔获量乘以年捕捞努力量分别得到这四类渔具的年渔获量，并将这四类渔具的年渔获量相加估算出合江江段1999-2002年的渔获量分别为104563.464kg、65564.231kg、123684.966kg和107285.272kg。

The proper models, such as Chao-Seader model, are chosen to caculate physical properties parameter so that physical properties caculation can be simplified and has good accuracy, tridiagonal matrix method is used to solve process modes. Normalization algorithms is improved.

模型以经典经验公式与操作员经验相结合估算精馏塔效率；选择Chao—Seader模型计算物性参数使物性计算简洁并达到较高精度；应用三对角矩阵泡点法求解过程模型；改进归一算法，提出CMB法与θ法相结合的新型归一算法提高了模型计算的收敛性与快速性。

The economic efficiency estimate was carried on to this production model and the results indicated that " triticale + silage com" two crops one year can make net profit of 12765 Yuan/hm^2 /year.

对该生产模式进行经济效益估算，结果表明，"小黑麦＋青贮玉米"一年两作年纯利润为12765元／hm^2，比一年一作玉米生产增收1500元／hm^2，是山西北部农区值得推广的生产模式。

It is extremely difficult to estimate the true value of the services which people perform for us.

但是要估算别人为我们提供的服务的价值却是极其困难的。

Reserve estimates for the Tupi oil field range from 5 billion barrels to 30 billion barrels－even Petrobras admits it doesn't know how big it is－and production isn't expected to come online for another four to five years.

该地区的Tupi油田还需要4－5年时间才能投产。据估算，该油田的储量在50－300亿桶之间，即使是Petrobras也不知道确切数字。

However, the size and number of colonies are less than which in anaerobic TYL medium. It can not grow in aerobic TYL and TYG media. Bifidobacterium longum can tolerate radiation dose as high as 80 Gy, which is the total dose in clinical radiotherapy. Therefore, Bifidobacterium longum has the potential to be the vector for cancer gene therapy combining radiotherapy. Besides, this is the first study to investigate the tolerance of X-ray radiation for Bifidobacterium longum.

此外，从本研究中得知Bifidobacterium longum可耐受高达80 Gy的辐射剂量（单次照射，存活分率为22 ％；以分次照射每次给予2 Gy来估算，存活分率为67％），此剂量为临床放射治疗一般给予的总剂量，因此证实Bifidobacterium longum有很大的潜力做为癌症基因治疗合并放射治疗的载具，本研究也是首篇调查Bifidobacterium longum对放射线耐受性的研究。

Scientists have estimated that a 1% loss of ozone would result in 1-3% more ultra-violet radiation reaching the Earth,' she writes. 'This would increase the skin cancer rate and affect all life forms,' she added.

科学家已经估算，1%的臭氧损耗将会导致让额外的1-3%的紫外线辐射到达地球，这将增加人类患皮肤癌的几率，以及影响所有的生命形态。

Position and velocity errors of Inertial Navigation System increase unboundedly in time.

摘要惯性导航系统(Inertial Navigation System，简称INS)之位置和速度的估算误差会随著时间而增加。

With the character of unclosed basin s taken into consideration, an estimation method is put forward, which could be applied to project design.

在分析岩溶区域特征的基础上，构建流域水量平衡方程式，计算流域之间的交换水量Δu，并结合非闭合流域的特征，提出在有资料和无资料的情况下Δu的估算方法，可应用于工程设计中。

This paper pointed out the area on which unconfined water can be used for irrigation by water quality evaluation of comparat...

本文通过大面积的水质评价，给出了可供利用的潜水面积；阐述了不同水资源合埋利用的途径；估算了合埋利用潜水资源和引黄水资源的节水潜力。

Recall that, in the Kolmogorov axiomatization, measurable sets are the sets which have a probability or, in other words, the sets corresponding to yes/no questions that have a probabilistic answer.

延期开工的Kolmogorov宣布要衡量所有套职能有限许多坐标限制在于衡量子寅。换句话说，如果是/否的问题回答f可看的价值观念在许多最有限坐标，然后它有一个概率的答案。

The experimental results showed that the algorithm can filter singular points and remain fixity of the target edge.

实验表明：基于模糊理论的图像智能滤波方法比常规图像滤波方法运算量小，它既能去除奇异点，又能保持图像中目标的边缘不变性，具有很好的滤波效果。