There's a difference between preconditions and preparation.

Preconditions are often needed.

先决条件往往是必要的.

Preconditions, postconditions and the order of operations need not be the same.

前提条件 、 后置条件和操作的顺序则不必相同.

These processes exist independently, run at all times , and fire whenever the sensory preconditions are true.

这些意识独立存在且随时待机, 一旦感知的先决条件成立就会触发.

No preconditions should be imposed.

不应有[强加]先决条件.

Clinical clinical thinking ability is the core and foundation, is to become a qualified doctor's preconditions.

临床思维是临床能力的核心和基础, 是成为一名合格医生的前提条件.

The article states preconditions, acts and effectiveness of enforcing the evaluation of the departmental teaching work.

文章阐述了开展系级教学工作评价工作的前提条件 、 做法和效果.

Since these are compile-time algorithms, violation of the preconditions will result in a compile-time error.

由于这是编译期算法, 违反先验条件将导致编译期错误.

Equality and mutual respect are the preconditions for the establishment of mutual trust.

平等相待、相互尊重,是建立彼此信任的前提.

One of the preconditions is generating dynamic excitation signals for the sensitive element test.

实施敏感部件的测试的前提条件之一,是要有动态激励信号产生.

Note: These functions don't check preconditions so they must used with care.

注: 这些函数不会检查先决条件,因此必须非常小心地使用它们.

Many foods now on the market are precooked and only require heating up.

现在市场上有很多熟菜供应,只要热一热就行了.

Precooked seafood is not recommended.

不要用煮熟的海鲜.

Comparisons were made between precooling of strawberries in a humidicooling system and a conventional mechanical store.

通过草莓在湿冷系统和普通机械冷库中的预冷试验,测定了草莓在这两种预冷装置中的冷却速率.

Appropriate carbon-diffusion and holding temperature during precooling are effective improvement measures.

恰当的渗碳扩散与预冷保温是提高疲劳寿命的有效措施.

Finally the two points needing attention when putting air precooling system into operation are given.

最后,指出空冷系统使用中需注意的两个方面.

Occurs, the patient conscious and strong beat fast, and accompanied by precordial discomfort.

发生时, 患者自觉心跳快而强, 并伴有心前区不适感.

The pain may also be felt beneath the precordium.

也可在胸前区下方有疼痛感觉.

Glycerate 3-phosphate is a precursor of the amino acid serine.

甘油 3- 磷酸是丝氨酸的前体.

In the past this had been the precursor to strong decisions.

要是在过去,这就是要采取强力行动的预兆.

The immediate transcript of a t RNA gene is known as precursor tRNA.

tRNA基因的直接转录物叫做tRNA前体.