Transmission electron microscopy creates images by shooting trillions of electrons through an object and measuring their absorption, deflection and energy loss.

透射电子显微镜呈像的方法是对物体发射万亿电子，测量它们的吸收，偏斜和能量损失。

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Soft references are suitable for use only if the application can tolerate the loss of the softly referenced object.

只有当应用程序可以忍受大量软引用的对象时，软引用才适合使用。

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However, if the object had been slightly larger - 20 to 30 metres (60 to 90ft) across - it could easily have caused extensive damage and loss of life, say researchers.

研究人员说，可是，如果这个物体稍微大一点——直径二十至三十米(60至90英尺)——它可能会轻易地造成广泛的破坏、生命的丧失。

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The campaigners object to the loss of disabled parking spaces as Wiltshire Council plan to create a "European-style piazza" at the centre of the city, claiming the eight spaces in the Guildhall Square are the only places within 250m of the Library, Post Office, and banks.

BBC: Salisbury protesters 'knit it to the man'

Preventive conservation refers to measures aimed at avoiding or minimizing deterioration or loss, meaning that actions are carried out within the context or in the surroundings of an object or group of objects, whatever their age or condition.

UNESCO: CULTURE