查询词典 jet skiing

A typical domestic sand jet fracturing tool is introduced. The basic structure of jet was introduced. The field applications indicate that sand jet fracturing is effective in improving production.

并对国内所使用的典型水力喷砂压裂工具进行了介绍，给出了工具中关键部件喷射器的基本结构，并联系国内现场实际的应用情况，说明了水力喷砂压裂是一种有效的增产技术措施。

"I did not expect the jet in M87 or any other jet powered by accretion onto a black hole to increase in brightness in the way that this jet does," says astronomer Juan Madrid of McMaster University in Hamilton, Ontario, who conducted the Hubble study.

&我无法预测M87核心喷流或者其他由黑洞补充的喷流的增亮行为&，哈勃研究专家组带头人、加拿大安大略省哈密尔顿市麦克马斯特大学的天文学家胡安。

Comparison between the stress of swirling and common jet nozzle tells that the former maximum stress is far larger that the latter. It can explain that the wear of swirling jet nozzle is more severe than common jet nozzle. The way how various parameters effect the wear of the nozzle is carefully studied in the article.

对比了旋转磨料射流喷嘴和普通磨料射流喷嘴的应力情况，结果表明：前者的最大应力远大于后者，这可以很好地解释旋转磨料射流喷嘴比普通射流喷嘴磨损严重的现象。

The force on the jet pipe in the hole jetted is analyzed, and it is indicated that the resistance on the jet pipe is the main factor influencing the feeding of jet pipe.

分析了喷管在喷孔内的受力，指出喷管在喷孔内所受的阻力是影响喷管送进的主要因素，据此调节喷管送进控制液缸控制腔的压力可控制送进速度和限制最大推力。

It firstly did numerical simulation towards pulsed liquid jet pump's throat pipe when it was working on different area ratio, different length of throat pipe, different working situation. Then it analyzed and proposed the optimization length of throat pipe on pulsed liquid jet pump; In chapter 5, it did experimental study on the fundamental performance of steady and pulsed liquid jet pump, then compared the experiment result with numerical simulation result, this approximately agreed with each other.

首次对脉冲液体射流泵在不同面积比、不同喉管长、不同工况下的喉管内部流场进行了数值模拟，分析提出了脉冲液体射流泵的最优喉管长度范围；第五章对恒定、脉冲液体射流泵的基本性能进行了试验研究，对比试验结果和数值模拟结果，二者吻合较好。

"Tree skiing" is a fixture of all backcountry skiing.

"树滑雪"是一个固定的所有穷乡僻壤滑雪。

Competitions for hockey, curling, skating and snowboarding will be held in the immediate Vancouver area, while those for nordic skiing, alpine skiing and bobsled will be held in Whistler, about 125 km (80 miles) away.

曲棍球、冰壶、滑冰和雪板比赛将在温哥华附近区域举行，而北欧滑雪、高山滑雪和雪橇比赛则被安排在125公里（80英里）以外的惠斯勒地区举行。

Competiti** for hockey, curling, skating and snowboarding will be held in the immediate Vancouver area, while those for nordic skiing, alpine skiing and bobsled will be held in Whistler, about 125 km (80 miles) away.

曲棍球、冰壶、滑冰和雪板比赛将在温哥华附近区域举行，而北欧滑雪、高山滑雪和雪橇比赛则被安排在125公里（80英里）以外的惠斯勒地区举行。

This paper study on the characteristics of potential tourist market of Yabuli skiing holidaymaker on the basis of spot investigation,and drew the conclusion that the market of developing four-seasonal tourist products had great potentialities;some suggestions about stimulating the potential tourist market of Yabuli skiing holidaymaker were put forward by analyzing the intention of tourism of the residents and...

在实地调查基础上，分析了亚布力滑雪旅游度假区潜在客源市场特征，证明其四季旅游产品开发市场潜力巨大；同时在分析外来游客及市民旅游意向的基础上，提出激活亚布力滑雪旅游度假区潜在客源市场的几点建议。

It can be used for cycling, running, inline skating, Nordic skiing, Nordic walking orback country skiing.

该软件可以被用于脚踏车运动，跑步运动，排列溜冰运动，日尔曼滑雪运动或者复古滑雪运动。

He became prime minister in 1997 and won international acclaim for his role in the Northern Ireland peace process.

他在1997年成为总理，并且因为在北爱尔兰的和平进程中发挥的作用受到国际社会的赞许。

Mixed Page Sorting Method Using the cuttable user model, this thesis proposes a mixed page sorting method by using cutted user model in server-side and complete user model in client-side.

隐私分级利用的混合式页面排序方法针对个性化搜索中搜索结果排序的问题，本文利用隐私可控开放的用户偏好模型，提出一个在客户端和服务器端分步进行的隐私分级利用的混合式页面排序方法。