种球

The radical scavenging activity of Laminaria japonica pigments was studied by the DPPH2,2-Diphenyl~(-1-picrylhydrazylassay. The total pigments showed a strong DPPH radical scavenging activity of 65.819% with the concentration of 0.52mg.ml~(-1). The DPPH radical scavenging activity of fucoxanthin was 19.85% with the concentration of 0.27mg.ml~(-1). The antimicrobial activity of pigment in Laminaria japonica was studied by the method of round paper. The results showed that the pigment extracts have activity against Escherichia coli, Pseudomonas aeruginosa, Saricina flava and Saccharomyes cerevisia. The antibacterial activity of total pigments for Saccharomyes cerevisia was the strongest with an inhibition diameter of 18.9 mm; and the antibacterial activity of fucoxanthin for Saricina flava was also much significant with an inhibition diameter of 10.2 mm.

测定了它们对自由基的清除率和对四种细菌的抑菌效果，研究结果表明，总色素和褐藻黄素的浓度与自由基清除率成正比，当总色素浓度为0.52mg.ml~(-1)时，清除率达到65.819%，高于陆生植物黑米色素和紫甘薯色素；当褐藻黄素浓度为0.27mg.ml~(-1)时，自由基清除率达到19.85%，低于紫苏色素、紫甘蓝色素、黑米色素、紫甘薯色素；对大肠杆菌、绿脓杆菌、八叠球菌、金黄葡萄球菌的抑菌实验结果显示，海带总色素对金黄葡萄球菌的抑菌活性最强，抑菌圈直径为18.9mm；褐藻黄素对八叠球菌的抑菌活性相对较强，抑菌圈直径为10.2mm。

3 Ball Compared to gate valve, globe valve, ball valve is new, increasingly widely used valves.

1.3 球阀相比闸阀、截止阀，球阀是一种新型的、逐渐被广泛采用的阀门。

3 Ball Compared valve, globe valve, ball valve is a new, increasingly widely used valve.

1.3 球阀相比闸阀、截止阀，球阀是一种新型的、逐渐被广泛采用的阀门。

The Chinese used to call bowling as "grounder", which was a kind of indoor sport using a ''.

保龄球中国人过去叫"地滚球"，是一种滚球击木柱的室内体育运动。

The Chinese used to call bowling as "grounder", which was a kind of indoor sport using a grounder hitting the stakes.

保龄球中国人过去叫"地滚球"，是一种滚球击木柱的室内体育运动。

Spinal echinococcosis is a rare entity, accounting for 1% of all cases of hydatid disease.

脊柱棘球蚴病是一种罕见的情况，占所有棘球蚴病例的1%。

Firstly, two covering hypersphere algorithms were proposed, referred to as minimum volume covering hypersphere algorithm and moving medium centers covering hypersphere algorithm, to heuristically and rapidly select the promising hidden center vectors from all the training samples. Then the particle swarm optimization algorithm combined with recursive orthogonal least square algorithm was used to further prune the initial hidden centers and optimize the control parameters.

为在实际应用中加速优化速度，降低优化计算复杂度，首先提出了最小体积覆盖超球和移动平均中心覆盖超球两种算法，用于启发式的从训练样本中快速的初选出径向基概率神经网络的隐中心矢量，然后将粒子群优化算法和 ROLSA 结合进一步优选隐中心矢量，同时优化核函数控制参数，实现径向基概率神经网络的全结构优化。

Numerical results obtained by inverse Laplace transformation were used to discuss the difference of the dynamic responses of shell under different response modes by respectively applying axial symmetry load and fluid load.

最后利用Laplace数值逆变换得到时间域中的数值结果，讨论了在球壳内作用有轴对称荷载和流体压力两种情况时不同响应模式条件下球壳动力响应。

Based on the selection rules on the rotational joint fit comer, spherical joint fit comer and parallel bar interference, which are application-based, the relationships between those restrictions and mechanism parameters are deduced in the mathematic functions, especially for the compound spherical joint.

文章摘要：以6-RSS型并联机构为研究对象，建立解析形式的反向运动学方程，给出考虑驱动副转角范围、球副转角范围、连杆干涉等约束条件时的反解选取准则，推导出每种约束表达与机构参数间关系，特别是复合球副独特的附加约束表达。

This conclusion makes it clear that there is mathematic relationship between parameter ellipsoid and latitudinal density , and we have full reasons to do research on latitudinal density and latitudinal density anomaly.

这样就将不久前提出的"参数椭球"与"纬向密度"联系在了一起，使得水准椭球的纬向密度成为一种数学必然，为研究地球的纬向密度及纬向密度异常找到了充分的理由。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。