spear是什么意思

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用法例句

In order to avoid the decline in big dip angle working face,this paper introduces some methods,such as,the feed from the top;one-way mining from the down;mining without knife from the top;the installation of anti-skid jack and sub-sequence moving,which achieve good results.

为解决大倾角综采工作面设备的下滑、倾倒,采取了工作面上端头进刀,单向下行割煤,上行空刀装煤,安装防滑千斤顶和分段顺序移架等方法,有效地控制了采煤机、链板机和支架的下滑与倾倒,取得了很好的效果。

By using a simplified mathmatical mo del of landing gear,the computer sim ulation of operating process of the anti-skid brake system of an aircraft in landing is carried out.

通过采用一个简化的起落架数学模型,对某机在着陆滑跑过程中防滑刹车系统的工作状态进行计算机仿真;并通过改变起落架的结构参数,对起落架与刹车系统在飞机着陆刹车过程中的相互作用进行了初步的定量分析,最后提出了考虑起落架因素的刹车系统半物理仿真试验验证方法。

Introduced in this paper is the technique to improve anti-skidding of the pavement micro and macro structures, in connection with the result from pavement anti-skid research in National Project 025.

本文根据国家０２５项目有关水泥混凝土路面防滑技术的研究成果，着重介绍了提高路面微观构造和宏观构造的抗滑能力的技术措施。

Stones and tiles slip resistance testing standards/ PAN Shi-hong;

我国应推出石材地面防滑检测标准

Testing results showed that the coat was excellent in abrasion resistance, stain resistance and slip resistance.

结果表明涂层在耐磨、耐污和防滑性方面表现优异。

To Make an Approach to Antislip Reliability under the Condition of Emergency Braking;

紧急制动条件下提升机防滑可靠性探讨

Discussing the artificial hacking technology of cement antiskid pavement;

水泥防滑路面人工拉毛技术探讨

To prevent serious skidding and obtain maximum friction coefficient, a design of intelligent aircraft antiskid brake system is presented.

以某型飞机刹车系统为研究对象,为了使该系统以最佳滑移率工作,防止陷入深度打滑和获得最大的刹车结合系数,提出了一种智能飞机防滑刹车系统的设计方案,制定出刹车控制规律并对整个刹车系统进行了仿真。

Aircraft antiskid braking system is complicated and nonlinear and it is so difficult to establish its exact model.

由于飞机防滑刹车系统的复杂性和非线性,建立其准确的动力模型比较困难。

The construction technology of drainage,anti-skidding, noise-reducing,multi-function asphalt pavement is introduced based on the trail project in Wuhan to Yingshan expressway.

以武汉至英山高速公路(谌周段)排水防滑降噪多功能沥青路面试验段为背景,介绍了排水防滑降噪多功能沥青路面的施工工艺,提出了热洒高粘度改性沥青作为防水粘结层的新方法,并结合材料特点提出相应的摊铺和压实工艺。

Anti-skidding Texture of Concrete Pavement and Construction Technique;

塑性刻槽已在中国广泛应用，成为主要的防滑措施。