2017年3月2日 星期四

hung out to dry. dead load, Live load. Longitudinal Drag

live load
noun
  1. the weight of people or goods in a building or vehicle.

Definition of dead load. : a constant load in a structure (as a bridge, building, or machine) that is due to the weight of the members, the supported structure, and permanent attachments or accessories.

Dead loads are static forces that are relatively constant for an extended time. They can be in tension or compression. The term can refer to a laboratory test method or to the normal usage of a material or structure.
Live loads are usually unstable or moving loads. These dynamic loads may involve considerations such as impactmomentumvibrationslosh dynamics of fluids, etc.
http://www.sothebys.com/en/auctions/ecatalogue/2016/impressionist-modern-art-evening-sale-n09497/lot.7.html
一般荷重
  1. 靜荷重(Dead Loads, statical):結構自重或固定器具重量,大小、位置和方向都不變的,例如建築物的自重。
  2. 活荷重(Live Loads, dynamical):或稱動荷載,指土木建築方面移動的荷載,重量非固定,大小、位置和方向隨時間變化,例如家具、人,以至橋樑所受的車輛重等。積雪處還包括雪載重,還可細分為:
    1. 水平活荷重(橫力)。
    2. 垂直活荷重。
  3. 衝擊荷重(Impact Load):以較高速度同物體相接觸

Longitudinal Drag
(車に対する)風圧,空気抵抗;〔航空〕 ((時に a drag)) (翼・機体に働く)抗力;抗力による速度減;〔サイクリング〕 タイヤの抵抗

Robert Reich

A White House official says the White House didn't know that Attorney General Jeff Sessions had twice met with the Russian ambassador during the presidential campaign until the story broke last night. White House aides have repeatedly denied any contact between the Trump campaign and the Russian government.
Translated: Trump isn’t going to defend Sessions. Sessions is on his own. He's going to be hung out to dry.

Urban Dictionary: hung out to dry

www.urbandictionary.com/define.php?term=hung%20out%20to%20dry

When you've been left alone to face a situation - especially a dangerous or unpleasant situation - the people who just abandoned you have hung you out to dry.

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