点斜式是指一种算式,已知直线上一点(a,b)并且存在直线的斜率k,则直线可表示y-b=k(x-a)。 点斜式方程是通过直线过的一个点和其斜率求该直线平面方程的一种方法。在平时做解析几何的题目时,会更多地运用点斜式方程来解题,直接的体现直线的性质。
依据直线斜率的计算公式(即点斜式)推导出待定点的计算公式。
The calculation formula of unknow points deduced by straight slope of direction intersection is a feasible and convenient working method;
就在上个月,日本汽车制造商不得不在全世界召回65万“飞度”斜背式汽车,以修理开关故障,否则会引起火灾。据称,一点故障会导致水进入电动车窗,引起部分零件过热。
Just last month, the Japanese carmaker had to recall 650, 000 Fit hatchbacks worldwide to fix a switch defect that could cause a fire.
前言: 为了保证一种既有斜齿轮又有直齿轮零件在注塑成形后能顺利脱模,给出了一套一模两位,点浇口进料, 旋转脱模,胶套式二次分型的双分型面注射模的设计。
To make sure that a plastic part with helical gear and spur gear can be demoulded successfully, an injection mould is designed with double parting faces, point gate feeding and rotating demould.
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