A practical treatise on ... land and engineering surveying, Τόμος 341863 |
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Σελίδα 26
... fixed , and equal to two right angles . The sides have no fixed equation , but may be extended from the infinitely little to the infinitely great without the triangle changing its nature and kind . It is from the theory of ...
... fixed , and equal to two right angles . The sides have no fixed equation , but may be extended from the infinitely little to the infinitely great without the triangle changing its nature and kind . It is from the theory of ...
Σελίδα 35
... fixed , and all other lines intersecting them must , when plotted , agree with the number or distance measured ; examples of which will be hereafter given . TRIANGLES . Problem 19 . To describe a right angle triangle , the base and ...
... fixed , and all other lines intersecting them must , when plotted , agree with the number or distance measured ; examples of which will be hereafter given . TRIANGLES . Problem 19 . To describe a right angle triangle , the base and ...
Σελίδα 40
... fixed , so that the said line shall pass through the centres , and at right angles to the planes of the circles , and the whole be suffered to roll upon a plane without sliding : If the rollers CD and E F be equal in 40 LAND AND ...
... fixed , so that the said line shall pass through the centres , and at right angles to the planes of the circles , and the whole be suffered to roll upon a plane without sliding : If the rollers CD and E F be equal in 40 LAND AND ...
Σελίδα 41
... fix them at C ; fix two pins at the extremities of the given chord A B , hold a pencil at C , then move the two laths against the pins , and the pencil at C will describe the arc required . Example . It is required to describe an arc of ...
... fix them at C ; fix two pins at the extremities of the given chord A B , hold a pencil at C , then move the two laths against the pins , and the pencil at C will describe the arc required . Example . It is required to describe an arc of ...
Σελίδα 42
... fix the lower pins in the same manner on the upper part of the circle ( keeping the laths fixed ) , and describe the other half of the circle in like manner . Problem 41 . A very neat instrument , called the bevel or centrolinead , for ...
... fix the lower pins in the same manner on the upper part of the circle ( keeping the laths fixed ) , and describe the other half of the circle in like manner . Problem 41 . A very neat instrument , called the bevel or centrolinead , for ...
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.