A healthy egg carries 46 chromosomes - 23 pairs - but before it can be fertilised it needs to ditch 23 of these, which it packages into a structure called a polar body.
一个健康的受精卵有46个染色体(23对)，但在它能分化之前，它必须先分为23个一组，形成极体。
Object To explore the regularity of microwave extraction (me) on Chinese medicines in different morphological structure and different polar compositions.
目的探索微波萃取(ME)对不同形态结构中药及含不同极性成分中药的提取规律。
Tourmaline with polar asymmetry structure has its particular electric characteristics-spontaneous polar electricity, which show as electrostatic electric field existing around mineral particles.
电气石的异极对称结构导致了其独特的电学性质——永久性自发电极性，表现为电气石微粒周围自发电场的存在。
It shows that BTS polar glass ceramics with grain orientation structure have a potential application in SAW devices for their high SAW coupling coefficient and low temperature coefficient of delay.
这种具有晶粒定向结构的BT S极性微晶玻璃，具有较高的机电耦合系数和低的延迟温度系数，在声表面波器件上具有潜在的应用价值。
The structure characteristics, advantages, key problems and technology requirement for bi-polar plate and winded electrodes were respectively described in detail.
详细介绍了水平双极铅布电池和卷绕式铅布电池的结构特点、优点、工艺难点和工艺要求。
Quantify the Relevance Hydrophobicity in protein Structure: the general expectation is that hydrophobic aminoacids are in the core of proteins, while polar aminoacids are on the surface.
量化蛋白质结构的参比疏水性：一般认为，疏水性氨基酸在蛋白质的核中，而极性氨基酸在表面。
Introducing polar group onto molecular structure of PP via chemical reaction is deemed as a primary means for functionalization of PP.
通过化学反应在PP分子结构中引入极性基团是达到PP功能化的根本途径。
Because the fiber is of chemical inertion, low surface energy, lack of polar groups, and highly symmetric methylene structure, the fiber has a high degree of crystallinity and orientation.
这是由于纤维在化学上不活泼，表面能低，表面缺乏极性基团，且是高度对称的亚甲基结构，使得纤维具有很高的结晶度和取向度。
Pointing out the multi-polar linear structure of the coal-mining area and the multi-core structure of theindustrial and commercial area in Fushun coal region, then interpreting the reasons.
第三，发现抚顺市存在着明显的二元城市形态与内部结构，采煤区域的多级直线型结构与工商业区域的多核心组合式结构共存；
The rocket experimental data indicated that the layered dusty plasma structure has a sharp boundary in the summer polar mesopause.
火箭探空实验观测结果显示，极区夏季中层顶尘埃等离子体分层中存在着稳定的锐边界结构。
Dazzling Titan glows with a 360-degree sunset as light scatters through its very extended atmosphere. Some structure is visible in the hazes of the northern polar hood.
当光通过这飘渺著的大气时，土卫六以令人眼花缭乱的方式展现了360度的日落。在北极的地方可以见到兜帽似的浓雾。
With the breakup of the Soviet Union and the collapse of bi-polar structure, the world structure develops the trend of multi-polarization.
随着苏联解体后两极格局的瓦解，世界格局不断向多极化演进。
With the breakup of the Soviet Union and the collapse of bi-polar structure, the world structure develops the trend of multi-polarization.
随着苏联解体后两极格局的瓦解，世界格局不断向多极化演进。
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