The filiform apparatus of synergids is apparent. Two polar nucleuses are located at the center part of the embryo sac and they have different orientations, sometimes they are at transverse direction, sometimes at longitudinal direction, and sometimes at oblique direction.
极核位于胚囊中央，排列方向不定，有时横向排列，有时纵向排列，也有时斜向排列。
参考来源 - 北柴胡胚胎学的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The crossing bar is one of the key parts of the bogie. It receives transverse direction, longitudinal direction and vertical load during the running of the vehicle.
交叉拉杆是转向架的关键部件之一，在车辆运行中承受横向、纵向和垂向载荷的共同作用。
The panel is very lightweight but structurally strong and can be selectively bent in one transverse direction if desired.
板件的重量非常轻，但结构很强，且如果需要的话，可沿一个横向方向对其有选择地进行弯曲。
These offer the major advantage of firmer wheel guidance in transverse direction and thus contribute to the extremely precise driving behaviour.
这些轴承的主要优点在于确保更加稳固的横向车轮制导，进而实现极其精确的驾驶。
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