来自专业的译者、企业、网页和免费的翻译库。
for your added convenience, the m555b mouse also features hyper-fast scrolling, which lets you fly through long documents and web pages with a single spin of the nearly frictionless scroll wheel.
eastern daylight time, thursday, october 20, 2005 at 04:00 central european time.
最后更新： 2017-02-27
使用频率： 1
质量：
:formula_4in another example, suppose that two bodies a and b having masses formula_5 and formula_6 respectively are connected with each other by an inextensible string over a frictionless pulley.
:formula_12in another example, suppose that two bodies a and b having masses formula_13 and formula_14 respectively are connected with each other by an inextensible string over a frictionless pulley.
最后更新： 2016-03-03
使用频率： 1
质量：