knock on是什么意思

网络释义

用法例句

Numerical study on the impact absorption behavior of compound tubes;

复合管撞击吸能特性的数值研究

Failure behavior of laminated composite cylindrical shells under axial impact loading;

层合圆柱壳轴向撞击失效行为的试验研究

Experiment Study on the Impacting Hurt Between RBC and Solid Surface;

红细胞-固面撞击损伤的实验研究

The elastic-plastic dynamic response of elastic foundation in collision;

弹性地基梁受撞击的弹塑性动力响应

A spring between the ship and the structure is taken into account,and the moment separation between the moving ship and the structure during the collision can be predicted.

通过引入合理的撞击模型,建立了水面运动船只低速撞击埋置框架结构的传递矩阵-节点耦合矩阵动力分析模型。

The overall thought of application of the passive safety protection technology in the design and research of the crashworthiness of urban railcar sets is discussed.

探讨了运用被动安全防护技术实施城市轨道动车组耐撞击性能系统设计的总体思想,并以某城市轨道车辆部分低地板动车组为研究对象,采用非线性动态有限元技术,进行了耐撞击系统设计和结构撞击仿真分析。

According to the structural specialties of passenger car designed for Iran,the design of the energy-absorbing structure was done in this paper,and the technical problems existing in structuctural design were solved,finally a numerical simulation of crashing was also done using the ANSYS/LS-DYNA3D.

针对出口伊朗客车的结构特点 ,进行吸能结构设计 ,解决了吸能结构设计中存在的技术问题 ,并利用ANSYS/LS -DYNA3D软件进行撞击数值模拟计

Feng s novels reveal modern people s confused and impetuous mentality in the crash and mingling of traditional culture and modern civilization.

小说揭示出现代人在传统文化和现代文明撞击、交融中的困惑、浮躁的心态。

Based on the result of investigation and inspectiong for the bumped wharf,and a lot of message about the bumped wharf have been known.

依据码头撞击的受损程度调查和检测结果,对码头的受损程度作了一定程度的了解,从码头的受力特点出发,对不同构件不同破损情况提出了科学合理的修复方案,为码头今后的安全使用提供了保障。

The bumping tests of H-shaped posts and O-shaped posts with W-beam guard-rail for the expressway guard-rail were carried out, the test results were analyzed and compared with the traditional guard-rails in this paper.

本文对轻型Ｈ型钢和Ｏ型钢高速公路护栏作撞击试验，并作了相应的分析研究。

The dustbins clashed as people emptied rubbish.

垃圾桶在人们倒垃圾时发出撞击声。

To strike together with a loud, harsh, metallic noise.

撞击击打并发出强烈刺耳的金属响声

He fell on the floor with an awful whomp.

他摔在地板上发出一声可怕的撞击声。

The car hit the tree with a sickening crash.

那辆汽车撞在树上发出让人难受的撞击声.

The car hit the tree with a sickening crash

那辆汽车撞在树上发出让人难受的撞击声。

A loud, harsh noise, such as that made by two metal objects in collision.

撞击声，铿锵声强烈刺耳的声音，如两个金属物体碰撞发出的声音

A sudden loud blow or bump.

砰然作响发出砰一声的猛击或猛撞

being or resembling the noise of things striking or bumping together repeatedly.

类似事物一再撞击发出的声音。

These noises resemble the sounds made by hitting two round pebbles together.

这些噪声类似于两块鹅卵石撞击所发出的声音。

The sound produced by or as if by bits of metal striking together.

叮当声有金属片相互撞击而发出的声音或象由其发出的声音

The striking together of two bodies, especially when noise is produced.

敲打两物体的撞击，尤指能撞出声响时

Sam heard a jar click open and then a clanging sound as something hit the floor.

山姆听到开瓶子的声音，接着好像是东西撞击地板发出的叮当声。

a small high-velocity shell; it makes a whizzing sound followed by a bang when it hits.

一种小的高速壳状物；受撞击时发出嗖嗖声并伴有爆炸声。

like the discordant ringing of nonmusical metallic objects striking together.

就像非乐器的金属撞击在一起发出的不和谐的响声一样。

Harsh snores from the bed of the fat Sister Chang struck out in every direction in a very frightening manner.

粗促的鼾声从肥胖的张嫂的床上发出来，四处撞击，显得很可怕。

The plunging water also sends out a never-ending roar as it strikes the bottom.

飞流直下的河水撞击谷底，也发出终年不息的轰鸣声。

The sound of a heavy fall or collision.

扑通声、冲撞声沉重的下落或碰撞发出的声音

A percussion instrument consisting of a concave brass plate that makes a loud clashing tone when hit with a drumstick or when used in pairs.

钹一种打击乐器，由一个凹铜片构成，当用单个或者双个鼓槌敲击时，可发出高的撞击声