What is the acceleration in the y direction at time zero?

Discussion of Step Function and Its Value at Time Zero

阶跃函数的定义及其在零点的取值

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In nicer weather, being outdoors gardening, jogging, or walking your dog can be a great way to spend time with zero stress ( or cost).

天气比较好的话，待在户外会是一种很棒的方式，无压力零成本，比如修剪花花草草、慢跑、遛狗等。

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Simply activating the Peak-Hold feature from the front panel and adding a serial printer results in a formatted RF leakage report each time the ZERO key is pressed.

简单激活峰顶举行特点从面板，并且增加一台连续打印机结果在格式化的RF漏出报告，每次零的钥匙被按。

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And at time zero, when it is there, it has a velocity in that ellipse.

时间为0时，在轨道上有速度。

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First, specimens are exposed to the corrosive environment for equivalent calendar time of zero year, 3 years, 8 years and 13 years.

首先，将试件暴露于加速腐蚀环境中，进行0年、3年、8年和13年的腐蚀试验。

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It calls tcp_drop() if the option is set and the linger time is zero.

如果设置了该选项，并且延迟时间为零，则调用tcp drop（）。

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Some analyses of time zero point for telemetering

遥测时间零点的分析

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Inventory control method has ABC, economic order batch, quantitative order, time order and zero stock, etc.

库存控制方法主要有ABC分类控制法、经济订货批量、定量定货、定期定货、准时制和零库存等。

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We want no jail time--zero.

我们不想坐牢，完全不想

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And I will show you now what is the average speed between time zero and four.

现在我要给你们看的是，0到4秒间的，平均速率。

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If you notice that the idle time is zero, then you should check if your system has I/ O throughput problems.

如果您注意到空闲时间为0，那么您应该检查系统是否存在吞吐问题。

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The risk is that accelerated fiscal stringency, at a time of zero interest rates, will depress the economy more than improve the fiscal outcomes.

在零利率时代，快节奏的财政紧缩对实体经济的抑制作用，将超过其使财政状况改善的作用。

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Through this research, the test found the following conclusions: The hardening time and zero time of concrete with salts advanced.

本文以收缩变化率最大时刻作为自收缩零点，试验通过研究发现：掺盐后混凝土硬化提前，自收缩测试零点提前。

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Research on Time Zero Method of Data Fusion Based on Radar/ Infrared Dual Mode Guidance

红外/雷达复合制导数据融合技术中的时间校准方法研究

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As a new kind of intelligent apparatus the phase-controlled switching which can close the circuit at the time of zero voltage and open it at the time of zero current.

目前一种新的智能化电器是相控开关，它是通过检测系统相位，实现在零电压下关合、在零电流下分断。

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It can solve mended grinding and polishing problem for uncertain time and zero step-entering quantum in SN elasticity grinding-wheel by designing special cycle program structure to ensure the part processing precision.

通过特殊的循环程序结构设计，解决了SN弹性砂轮抛磨时不定次数的无进给量或微进给量的补磨磨削，保证了零件的加工精度。

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Think of it as being time zero.

想想在时间为0的时候。

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For example, you get the break at time zero.

例如说，你在时间0的时候就有了破裂。

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The kinetic of 4-CP degradation in different retention time accords with zero order equation.

不同停留时间下，固定化镰刀菌对4-CP的降解基本符合零级反应动力学。

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So suppose here is the object at time t equals zero.

假设此处就是物体，在t=0时的位置。

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