1. Bark smooth with conspicuous lenticels when young, longitudinally splitting with age. 树皮平滑的具明显皮孔幼时，纵向劈开老时。
2. Driving longitudinally to adopt gear, rack transmitting design, which ensures the stable movement of the machine. 纵向驱动采用齿轮、齿条传动设计，保证机器的稳定运行。
3. Ship hull's sagging and hogging may cause center distance increasing or reducing to longitudinally disposed gear housing. 船体中垂及中拱弯曲变形会使沿船体纵向布置的齿轮座中心距产生增减。
英英解释
adv.
1. across time
2. in the direction of the length
3. with respect to longitude
