survey and design of hair-pin curve

Airborne Survey and Remote Survey Center of Nuclear Industry

contingent survey [= extraordinary survey

Cross-section Survey and Profiles Survey

survey of existing line；survey of existing railway

topical survey subject survey

cotter pin retaining pin

gudgeon pin [= crosshead pin]

pin-for-pin

pin-to-pin leakage

pin-to-pin reducer

’discrete’and ’continuous’survey

1∶250 000 regional geological survey

1∶50 000 regional geological survey

2002 National Nutrition and Health Survey

210Po survey

250000 Regional Geological Survey

250000 scale regional geological survey

3 point- 3 poles lead survey method