be on pins and needles:(紧张或担心得)如坐针毡剑桥英语释义:to be nervously waiting to find out what is going to happen注:pin是大头针,needle是缝衣针,在这堆针上面坐立不安的状态,非常形象地形容焦虑的心情,意思也和成语“如坐针毡”如出一辙。 04:16 Sheila: Get back here so I can give it to...
The very first of the thousand steps, if you want to find something new, is to learn to live with uncertainty, and to learn to accept failure as the norm, because looking for the unknown is like being a trapeze...
The very first of the thousand steps, if you want to find something new, is to learn to live with uncertainty, and to learn to accept failure as the norm, because looking for the unknown is like being a trapeze artist who never works with a safety net. There's no guarantee when, or...
Re: How to Calculate Rate Constant? «Reply #1 on:August 29, 2007, 02:08:38 PM » It depends on the order of your reaction. A first order reaction has a rate law: rate = d[A]/dt = k[A] Which has the integral form: ...
Calorimeters measure the heat of a chemical reaction or a physical change like ice melting to liquid water. The heat of reaction is important for understanding the thermodynamics of chemical reactions and predicting what kinds of reactions will take plac
When you're pushing into the unknown, there's no guarantee of success, and so-called failure is your constant companion. 翻译: 我的博士导师范塔梅伦(E.E. van Tamelen)是他这一代中最具创造力的化学家之一,他所想的都是化学中的重要问题,同时这些科学问题往往也是最困难的,因此和他共事更使我乐观...
the passage will be read sentence by sentence, or phrase by phrase, with intervals of 15 seconds. The last reading will be done at normal speed again and during this time you should check your work. 听力原文: Sunrise, Sunset Has it ever seemed to you like sunsets take longer than sunris...
A and B are the reactions. k is the rate constant. x and y are numbers thatmust be determined experimentally. Once x and y are known, the input of any reactant concentration can be used to find the rate of the reaction. x and y are important because the give a relationship between ...
With so many choices in theShopify App Store, standing out to merchants is a constant challenge. How do you ensure that your app gets found by the users who need it? The truth is, standing out from the competition begins even before you build your app. By choosing your niche carefully,...
A reaction is a sudden but usually short-lived upward or downward movement in a stock's price. While the financial media often speaks of how the market will react to certain news, "reaction" has a specific meaning in finance and investing. It's a quick, typically brief fluctuation in a ...