A practical treatise on ... land and engineering surveying, Τόμος 341863 |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 21.
Σελίδα 76
... direct a line , and poling become unnecessary . Flags or marks must be left at all the intended stations , and fixed with great care in the direct line . Provided the distant object can only be seen at intervals , then the head surveyor ...
... direct a line , and poling become unnecessary . Flags or marks must be left at all the intended stations , and fixed with great care in the direct line . Provided the distant object can only be seen at intervals , then the head surveyor ...
Σελίδα 77
... direct the telescope to the first station and clamp the upper limb ; then reverse the telescope on the Y's ; if the vertical wire in the telescope cuts the point required , let the instru- ment remain in that position until the whole ...
... direct the telescope to the first station and clamp the upper limb ; then reverse the telescope on the Y's ; if the vertical wire in the telescope cuts the point required , let the instru- ment remain in that position until the whole ...
Σελίδα 77
... direct a line , and poling become unnecessary . Flags or marks must be left at all the intended stations , and fixed with great care in the direct line . Provided the distant object can only be seen at intervals , then the head surveyor ...
... direct a line , and poling become unnecessary . Flags or marks must be left at all the intended stations , and fixed with great care in the direct line . Provided the distant object can only be seen at intervals , then the head surveyor ...
Σελίδα 77
... direct the telescope to the first station and clamp the upper limb ; then reverse the telescope on the Y's ; if the vertical wire in the telescope cuts the point required , let the instru- ment remain in that position until the whole ...
... direct the telescope to the first station and clamp the upper limb ; then reverse the telescope on the Y's ; if the vertical wire in the telescope cuts the point required , let the instru- ment remain in that position until the whole ...
Σελίδα 88
... direct the assistant in fixing the poles at the determined point , provided there is no natural object . When these four lines are measured , it is imperative to measure a diagonal or tie lines , as A and B , otherwise the work could ...
... direct the assistant in fixing the poles at the determined point , provided there is no natural object . When these four lines are measured , it is imperative to measure a diagonal or tie lines , as A and B , otherwise the work could ...
Άλλες εκδόσεις - Προβολή όλων
A Practical Treatise on ... Land and Engineering Surveying Henry S. Merrett Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
A Practical Treatise On ... Land and Engineering Surveying Henry S Merrett Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
A B C acres adjustment base line bubble calculated centre chain lines chord circle circumference circumferentor collimation column compass correct cross sections cube yards curve datum line described diameter Diff difference Ditto divided divisions draw the line equal fence field-book fifth column figure find the area fixed flag fore sights frustrum given ground height horizontal inches and decimals inclosure instrument intersecting length line A B logarithm manner mark measure method minutes multiply needle object Offsets in inches parallel plate parallelogram pencil perpendicular plotted poles Problem protractor quantity quotient Radius in chains right angles roods Rule scale secant sector segment sextant side A B sine slopes spirit level square links staff station straight edge subtract surface survey surveyor TABLE take the angle tangent points telescope theodolite tie line tracing paper transverse distance trapezium triangle vernier vertical whole
Δημοφιλή αποσπάσματα
Σελίδα 102 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 66 - ... the rail; multiply the length by the breadth and the product by the height; then divide the product by two, and you have the number of bushels of shelled corn in the crib.