P-methylbenzensulforate trace components were determined by derivative spectrophotometer and optimum derivative order and wavelength intervals were selected.

采用导《分光光度法研究了对甲苯磺酸痕量组分的测定方法，并选择了求导阶数、农导波长间距等最佳条件。

youdao

Instead, when a company or an investor wants to buy a derivative contract for, say, oil or wheat or securitized mortgages, an order is placed with a trader at a bank.

当一家公司或者一个投资者想买一份衍生产品合同，例如石油或者小麦或者担保抵押，其买单是在一家银行的交易员那里。

youdao

We've done this before-- this is the conservation of energy, and in order to find the period of the simple harmonic oscillation, we take the time derivative.

以前算过-,这是能量守恒，为了算出,简谐振荡的周期，我们求时间导数。

youdao

And all this is, is saying that when you take a mixed second derivative, it doesn't matter in which order you take the two derivatives.

麦克斯韦关系的本质是,当你考虑混合的二阶导数时，求导的顺序不影响最后的结果,现在，我们利用这些关系。

麻省理工公开课 - 热力学与动力学课程节选

I take a look at the second derivative, which is the second order condition.

我需要求出二阶导数,即需要寻找二阶条件

耶鲁公开课 - 博弈论课程节选

And the point is that the second derivative of A, with respect to V and T in this order is the same as the second derivative of a with respect to T and V in this order.

问题的关键在于A的二阶导数，对V和T以这样一个顺序求导,和对T和V以这样一个顺序,求导是一样的。

麻省理工公开课 - 热力学与动力学课程节选

In order to ensure device anonymity, the Bluetooth sensors only send a derivative of each device's MAC address to the bridge's main controller, so consider this a Bluesnarfing safe-zone.

ENGADGET: This week only, London's Tower Bridge is the world's largest Bluetooth device