clamp screw sextant
制动螺钉六分仪
light alloy sextant.
轻合金六分仪
adjustment of sextant.
六分仪校正
Sextant of the Sea Elves
海精灵的六分仪
corrected sextant altitude
已校正的六分仪高度
sextant altitude correction
六分仪高度修正
endless tangent screw sextant
微调螺杆六分仪
Bubble sextant with averaging gear
平均机气泡六分仪
Rocking the sextant swinging the arc.
六分仪弧尺的转动。
Improved Global Positioning Electronic Sextant
一按按钮就知船位的电子六分仪
What can you use the Sextant of the Sea Elves for
海精灵得六分仪有什么效用？
What can you use the Sextant of the Sea Elves for?
六分仪有什么用？
Before he dies, the unfortunately man hands you his Sextant.
在那个不幸的人临死之前, 他给了你他的六分仪。
The Analysis on the Difference from Observing the Altitude by Sextant
六分仪测天高度误差分析
Study on Angle Measuring Sensing System of Nautical Electronic Sextant
航海电子六分仪测角传感系统研究
Features6 opening windows, a telescope and sextant as well as3 deck lanterns!
有六扇可开启的窗户望远镜六分仪以及3具甲板航灯！
Polaris tables for determining latitude from sextant altitude and for azimuth
北极星方位和测者纬度改正量表的编排方法
The Analysis of Conditions about Eliminating The Principle Error in Measuring of Bubble Sextant
消除气泡六分仪测量原理误差的条件分析
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