您要查找的是不是：
- navigation marker supervision 航标监测
- Navigation is difficult on this river because of the hidden rocks. 因为河上有暗礁，所以在这条河上航行很困难。
- A mound of stones erected as a memorial or marker. 锥形石冢一堆石头，用于表示纪念或标志
- New workers often need close supervision. 新工人通常需要严密的管理。
- There are five people under her supervision. 有五个人在她的监督之下。
- The compass is an instrument of navigation. 罗盘是航行仪器。
- navigation marker 导航标志,航标
- This drug should only be taken under the supervision of a doctor. 此药须遵医嘱服用。
- The theory and practice of aircraft navigation. 航空学飞机航行的理论与实践
- Close attention; close supervision. 密切注意; 严格监督
- Children should not be left to play without supervision. 孩子玩的时候不能无人照看。
- Navigation is difficult on this river because of the hide rock. 因为有暗礁，在这条河上航行很困难。
- Aerial navigation by visual identification of landmarks. 地标领航用可视地标来进行飞机航行
- A stone placed over a grave as a marker; a tombstone. 墓碑，墓石置于坟墓上作为记号的石头; 墓石
- Management, supervision, or guidance of an action or operation. 监督，管理对动作或操作的管理、监督或指导
- You can see the blade bears the marker's stamp. 您能看到，刀面上有厂家的标记。
- It's not a marker to my mum's bread. 妈妈做的面包是无可比拟的。
- An inscribed marker placed at a grave; a tombstone. 墓碑安放在墓地边刻有文字的碑；墓石
- The letter served him as a book marker. 他把这封信当书签用。
- Writing signature with marker or spray paint. 有作记号的人或水沫油漆的写作签名。
