种球

James Watt's flyball governor (1769) regulated steam flow to a steam engine to maintain constant engine speed despite a changing load.

1769年瓦特的飞球调速器，它是一种调节蒸汽流的装置，即使荷载变化仍可保持蒸汽机的转速不变。

Also, flyball is not limited to the size of the breed, as smaller dogs such as Jack Russell Terriers and Whippets often compete with great success in mixed-breed teams (teams consisting of dogs of various sizes and breeds).

另外，飞球比赛也不限制参赛犬的体形，小型犬如杰克罗素梗和惠比特犬经常在与其他犬种的混合小组的比赛中获得成功。

The cyanophyta were dominated by Gloeocapsa sp..

蓝藻的优势种以粘球藻（Gloeocapsa sp。

Topological structure of the molecular phylogenetic tree, constructed by 16S rRNA gene with Neighbor-Joining method, revealed that all species of Helice from Sesarmidae and two species of Hemigrapsus from Varunidae were clustered into one branch, two species of Sesarma from Sesarmidae were clustered into another one, Grapsus albolineatus from Grapsidae and Plagusia tuberculata from Plagusiidae were formed one absolute branch respectively. The molecular analysis showed that the genus Helice indeed must be considered to be Varunidae, because it formed a monophyletic group with the genus Hemigrapsus yet not the Sesarmidae.

而采用NJ法构建的系统进化树的拓扑结构也显示，所有的厚蟹与属于弓蟹科的肉球近方蟹和绒螯近方蟹聚为一支；属于相手蟹科的2种相手蟹聚为一支；属于方蟹科的白纹方蟹和属于斜纹蟹科的瘤突斜纹蟹又各自成为一支。

Ti jian zi is like Hacky Sack with a large shuttlecock, bigger than those used for badminton.

踢毽子，一种用大号羽毛球来玩的Hack Sack游戏，不过球比羽毛球要大。

Ball Joint Handrailing is one good type of the handrails.

球接栏杆是栏杆的一种较好的型式。

The system consists of a sphere-ellipsoidal reflector, a hyperboloidal reflector and a tilted light pipe.

提出了一种新型离轴照明系统，它由一个半球-椭球型反射镜、一个双曲面反射镜和一个倾斜的匀光杆组成。

Churg-Strauss syndrome is a rare systemic vasculitis of unknown cause, occurring in patients with asthma and accompanied by hypereosinophilia.

Churg-Strauss症候群是一种罕见的全身性血管炎，伴随著气喘与高嗜酸性球血症，病因仍未明。

Data pre-processing technologies such as singular points elimination, registration and radius compensation are studied. Base on chord high difference algorithm, a new one called chord high difference-ratio algorithm is proposed to improve veracity and robusticity of singular points elimination. Then, a registration algorithm based on local surface reconstruction is proposed, which avoids infaust influence coming from single reference point error.

在弦高差法的基础上，提出了全新的弦高差—比法，提高了异常点剔除的准确性和柔韧性；提出了一种基于局部图形重构的重定位方法，该方法通过对特征球的最小二乘拟合，消除了单一参考点的精度对重定位的影响；在此基础上对重定位的误差进行了详细的分析，给出了精确的误差值，从数学的角度保证了重定位的精度；在三角网格法的基础上提出了基于Delaunay三角剖分的半径补偿新方法，有效改善了补偿矢量的计算效率和准确性。

These two calibration methods were compared with numeric experiments. Results indicate that comparing with MSDM, BDM is not only available for the force calibration of non-spherical or anisotropic cells, but also for irregular cells in optical trap potential with inharmonic and asymmetric profiles. The results agree with the experiments reported.

用数字实验对这两种标定方法进行了比较，结果表明：与均方位移法相比，玻尔兹曼统计法不仅适用于各向异性非球性细胞，也适用于非简谐、非对称光势阱中任意形状的生物细胞光阱力的标定，结论与已有直接实验相符。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。