You can also root prune them each year to maintain a convenient size.
同时也可以通过每年修剪它们的根来使它们维持合适的大小。
Convenient replace and maintain with the design of wear-resisting track and modularization.
采用精密耐磨轨道及模块化设计，更换维修方便使用。
The method is simple, convenient, which is suitable for factory to maintain zinc dipping solution.
该法简单、方便．方便工厂对浸锌液的维护。
Configuration is simple, controlling is easy, trouble is little, convenient to maintain.
构造简单，操控容易，故障少，保养方便。
Device assembly is convenient, maintain easily.
装置装配方便，维护轻易。
With convenient use and high safety, it thoroughly infiltrates into skin to maintain long effect.
可完全渗透入皮肤，维持长效的功能。
With convenient use and high safety, it thoroughly infiltrates into skin to maintain long effect.
可完全渗透入皮肤，维持长效的功能。
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