查询词典 hard time

Freezing rain and snow weather in our country 19 provinces (autonomous regions and municipalities), China's tungsten mine areas - Jiangxi and Hunan enterprises wolframite been hit hard, In addition, Guangxi and other resources and Xing'an County, Fujian and Guangdong, Nanjing wolframite and other places also suffered a severe snowstorm, corporate power facilities severely damaged, resulting in a longer period of time of mine production, restoration and reconstruction is difficult, one quarter of the country is expected to yield Scheelite will be seriously affected.

我国冷冻雨雪天气19个省，中国的钨矿领域-江西和湖南企业钨受到重创，此外，广西和其他资源，兴安县，福建，广东，南京黑钨矿和其他地方也遭受了严重的雪灾，公司电力设施严重破坏，在对煤矿生产，恢复和重建造成较长时间是困难的，国家的一个季度，预计产量白钨矿将受到严重影响。

I will work hard at studying English all the time.

这是我第一次用英语在我的博客

You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Quadratic assignment problem is a NP-hard combinatorial optimization problem and has been applied in various fields. There are always many zero elements in the flow matrix or distance matrix of the quadratic assignment problem instances which are abstracted from the practical problems. Much computation time can be saved if we can first reduce the size of the problem by using its zero elements.

二次分配问题(quadratic assignment problem， QAP)是应用于诸多领域的组合优化NP-难题，许多从实际问题中抽象出来的二次分配问题，其流矩阵与距离矩阵中存在大量零元素，如果在该类二次分配问题的求解中，能够充分利用这些零元素的信息，将大大缩减问题的规模，节省大量运算时间。

It points out that under the hard-switching PWM pattern, the movement speed of flux linkage is adjusted by zero space voltage vector, but when soft-switching PWM pattern is used, effect time of space voltage vector vary greatly, sometimes even no zero space voltage vector exist.

指出在硬开关PWM模式下，磁链的运动速度靠零空间电压矢量调节；而在软开关PWM模式下，空间电压矢量的作用时间发生了很大变化，有时甚至没有零空间电压矢量。

This paper tries hard to make aesthetics education workable and systematic, at the same time, it adopts the artistic conception of traditional literature theory and the conception of acceptant aesthetic in the west when the connotation of the text is explained, from the angle of the author, text, and readers. The textbook should be understood dynamically.

本文力图在使审美教育具有可操作性的具体化和系统化的同时，还在解读课文思想内涵时采用了中国传统文论的意境说、西方的接受美学等理念，从作者个人、文本自身、读者接受等角度出发。

Mr. Ackman, the hedge fund manager who has been vocal about his bearish views of some financial companies in recent years, said it is hard to precisely time the market.

最近几年曾公开表示看衰某些金融公司的避险基金经理人艾克曼说，很难准确掌握市场变化时机。

The drum water level is an important variable to be controlled, it is hard to get the mathematic model of the water level with adjustive process, it is characteristic of nonlinearity, instability and time lag.

而模糊控制不要求知道被控对象的精确数学模型，只需要操作人员的经验知识及操作数据，鲁棒性强，非常适合用于非线性、滞后系统的控制。

When in doubt - go easy. Anana means "with ease." Push yourself as hard as you can, while at the same time respecting your body and your abilities.

印度语& Anana &意思是&放轻松&，在练习瑜珈的过程中尽量做到教练的要求，但是千万不要勉强。

Anana means quot;with ease.quot; push yourself as hard as you can, while at the same time respecting your body and your abilities.

印度语&anana&意思是&放轻松&，在练习瑜珈的过程中尽量做到教练的要求，但是千万不要勉强。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。