你可能感興趣的試題

Clearance gauges at bridges indicate （）.

A.the height of the tide
B.depth of water under the bridge
C.charted vertical clearance at mean low water
D.distance from the water to low steel of the bridge

單項選擇題

Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．

A.concealed
B.buried
C.existed
D.built

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Clearances of bridges and overhead cables below Bonneville Dam refer to heights in feet above mean （）.

你可能感興趣的試題

Clearance gauges at bridges indicate （）.

Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．