Van Nostrand's Engineering Magazine, 24권D. Van Nostrand, 1881 |
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84개의 결과 중 1 - 5개
7 페이지
... present bar , in front of the jetties , rendering it neces- sary to extend them , in order to cut a passage through it . " It seems essential , therefore , that the agencies which maintain the present bar should remain in as full force ...
... present bar , in front of the jetties , rendering it neces- sary to extend them , in order to cut a passage through it . " It seems essential , therefore , that the agencies which maintain the present bar should remain in as full force ...
9 페이지
... present shows , on some portions of it at least , indica- tions of considerable stability , shall con- tinue to resist abrasion and wear , after the work on each side of it reaches the required height , there will be no special need of ...
... present shows , on some portions of it at least , indica- tions of considerable stability , shall con- tinue to resist abrasion and wear , after the work on each side of it reaches the required height , there will be no special need of ...
10 페이지
... present exposure move the inner end of the swash channel is to be attributed , cannot be positively northward . It may be expedient to stated . assist , by dredging , this developed ten- dency to scour along the line of the pro- posed ...
... present exposure move the inner end of the swash channel is to be attributed , cannot be positively northward . It may be expedient to stated . assist , by dredging , this developed ten- dency to scour along the line of the pro- posed ...
15 페이지
... present time as desirable , it difficulties and obstacles have not always is owing to a lack of knowledge and permitted the rigid teachings of thermo- understanding of the subject under dis- dynamics to be precisely realized , though ...
... present time as desirable , it difficulties and obstacles have not always is owing to a lack of knowledge and permitted the rigid teachings of thermo- understanding of the subject under dis- dynamics to be precisely realized , though ...
26 페이지
... present obtained at the expense of may be made to the results of a series of hardness . " Again , in speaking of the experiments made on iron and mild steel , results of the test , under hydraulic in order to determine their respective ...
... present obtained at the expense of may be made to the results of a series of hardness . " Again , in speaking of the experiments made on iron and mild steel , results of the test , under hydraulic in order to determine their respective ...
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23 Murray 27 Warren Airolo angle applied asphalt axis boats boiler bottom bridge cement cent coal compressed concrete construction cost cubic curve cylinder D. K. Clark depth diameter direction elastic elastic limit electric engine equation experiments feet flues formula friction Gothard tunnel gun cotton heat inches instrument iron jetty laid lamps latter length less light lime load locomotive magnet material means ment metal meters method metric system miles mortar NOSTRAND observed obtained paper pavements Pei-ho pipe piston plane plates Portland cement practical present pressure produced Prof quantity rails railway reflecting telescope resistance ring river road sound specific gravity steam steel stone streets strength Sullivan's Island surface telescope temperature theory thickness tion tons torpedo traffic tube tunnel Val de Travers velocity volume Warren Streets weight wire yards
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142 페이지 - A sailing ship under way shall make with her fog horn, at intervals of not more than two minutes, when on the starboard tack one blast, when on the port tack two blasts in succession, and when with the wind abaft the beam three blasts in succession. (c) A steam ship and a sailing ship when not under way shall, at intervals of not more than two minutes, ring the bell.
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