as from:on and after(a specified time)

It can use transcendental equations to predict the corrosion initiation time of concrete bridge decks based on the measured surface chloride concentration.

通过对钢筋混凝土桥面板表面氯离子浓度的测量,并运用超越方程预测钢筋混凝土桥面板锈蚀的开始时间,即采用三种不同表面氯离子的浓度-时间关系曲线,根据不同的扩散系数和混凝土层深度对锈蚀开始时间进行预测,这对于桥面板的维护和修复有重要的参考价值。

at [from] the (very) outset

在开始时 [从一开始]

I was against it from the first.

从一开始我就反对。

He hit back from the beginning.

从一开始他就进行回击。

I knew him from the first.

从一开始我就认识他。

You've continued the same policy from the start.

你从一开始就始终抱定一个宗旨。

They have been a part of life since its inception on planet Earth.

从一开始它们就是地球生物的一部分。

Mickey is a clean mouse right from the beginning.

米老鼠从一开始就是一只纯洁的老鼠。

From the beginning, everything has worked out.

从一开始，一切就已经安排好啦。

The celebration will run from next Monday.

庆祝活动从下周一开始。

"Let me start all over again.

“让我一切从头开始吧。

He would have to start all over again.

他得再从头开始来一遍。

He embarked on a new career.

他开始从事一新事业.

begin a new business

开始从事一项新工作

He who will climb the ladder must begin at bottom .

爬梯子须从第一蹬开始。

It's been raining since last night.

从昨晚开始一进在下雨。

He that climbs a ladder must begin at the first step .

登梯须从第一级开始。

vacation from July l

从七月一日开始的假期

We start a book at chapter 1.

我们读书从第一章开始。