查询词典 difficult menstruation

It is difficult to predict the time to debug the code, hence it is difficult to schedule.

这是很难预测的时间来调试代码，因此它是很难的时间表。

Dendrology is a difficult course for its abundantly abstract and trivial contents. The key to a better teaching result for the course is that teachers should not only master relative concepts, terms and feathers of trees, but also pass them to students by appreciate methods while increasing students' interests to the course. A challenge is that there are numerous terms about trees and most of them are difficult and unfamiliar words to most people.

树木学是一门内容较深奥抽象又纷繁琐碎的学科，老师对概念、术语和树木特征的准确把握并把其恰当传授给学生、激发其对课程的学习兴趣是教好树木学的关键；而有关树木和植物分类学的术语对大多数人而言又是很偏僻、难以掌握的词汇，且其数量巨大。

It simulates the human thought and the decision-making process, and solves the control difficult problem of complex system that describing is very difficult with the precise mathematical model (differential or difference equation).

基于知识驱动的拟人智能控制系统，是一种模拟人类思维和决策过程，解决难以用精确的数学模型来描述的复杂系统的控制难题的一种全新的控制系统。

At present the main research and the application public key the system crypto-algorithm has two kinds: The RSA algorithm and the ECC algorithm, former based on the great divisor of integers decomposition difficult problem, latter is separated the logarithmic computation difficult problem based on the elliptic curve in.

目前主要研究和应用的公开密钥系统的密码算法有两种：RSA算法和ECC算法，前者基于大整数因子分解难题，后者基于椭圆曲线上离散对数计算难题。

In the practice of mineral process, the dotation of marmatite is one of the dii'l'iculL problems of polymetal sulphide separable flotation, which makes it difficult to increase the recovery of zinc mineral at the marmatite mine in wenshan ,which makes it even more difficult because of its ore characteristic.

选矿实践中，铁闪锌矿的浮选是目前多金属硫化矿分离的难题之一，文山铁闪锌矿的浮选回收率及品位由于矿石特性所致，要使其达到较好的指标，具有较大的难度。

See each other as long as the double-lock the other side it is very difficult to live firepower to play each other, earthquakes patients with LR Master of mad so difficult to play a shot.

只要双锁互相看住对方火力对方很难发挥，地震术与LR的狂射让法师难以发挥。

This too was difficult for Jews, who had to take special, more difficult entrance exams.

即使是想修数学，犹太人也必须通过更难的入学考试。

It is not difficult to realize an information management system, but what difficult is how to realize it in lest cost, and make it transplantable, maintainable and expansible.

实现一套信息管理系统并不困难，困难的是如何用最少的代价构建一个具有可移植性，可维护性和可扩展性信息管理系统。

It is fabulously difficult to describe and very difficult to manage.

企业个性很难描述，而且很难把握。

Canadian Museum of Nature of Natalia -赖伯泽恩斯基 excavation of the bones of the head of survey research, he said: The start of the fin-footed animals from the land to study the evolution of the oceans is very difficult The reason for this is fossil evidence of ancient species, it is difficult to obtain, and to identify specific moot.

加拿大自然博物馆的纳塔莉亚－赖伯泽恩斯基是这项骨骼挖掘勘测研究的负责人，他说：展开对鳍足类动物从陆地到海洋的进化研究是非常困难的，其原因在于远古物种的化石证据很难获得，并且具体鉴别颇具争议。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切