This article investigated the adaptability of all kinds of detergent in different base oil through plate and four balltesting.
本文利用成焦板、四球机试验考察了各清净剂在中间基和加氢基础油中的感受性。
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Testing aerodynamics: the hotly-discussed World Cup ball is not the roundest you've ever seen once Serbia's Aleksandar Lukovic gets his granite forehead on to it.
空气动力学检测：在看到塞尔维亚的万诺维奇用前额头顶球的景象，众说纷芸的世界杯用球不是最圆的。
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Ball Aerospace's Jake Lewis is reflected in one of the mirrors on a James Webb space Telescope Array, in the X-ray and cryogenic facility for testing.