两冲程的

By means of the K-ε turbulence model and finite element method, the flow of the fluid in the valve and the piston during a cycle of pumping is simulated and calculated. The motion law of the crude oil in the valve passage and concentric annulus in the upstroke and downstroke is analyzed.

针对杆式泵泵简内的流体流动问题，采用湍流模型的K-ε两方程模型和有限元方法，对在一个抽油循环中阀与活塞在几个特定的位置的流体流动进行了建模与计算，具体分析了处于阀道内和同心环状空间中的原油在上下冲程的运动规律。

Must have good understanding of small two and four-cycle engines.

对两冲程和四冲程的小型发动机有一定的常识6。

Because the two-stroke engine can develop twice the power of the four-stroke engine of the same size.

由于二冲程发动机的两倍，可发展的四个权力同样大小的冲程发动机。

In many cases, this has been a two cycle gasoline scooter, moped, or motorcycle which are very dirty vehicles.

许多情况下，这都是由两冲程汽油小轮摩托车，轻型摩托车或摩托车造成的。这些车的微粒排放会造成环境污染。

One interesting experiment at diversification by Jena occurred in the mid 1950's; Carl Zeiss Jena produced four variants of a model two-cycle diesel engine for hobbyist applications in model cars, planes, and boats!

二十世纪五十年代中期，耶拿东蔡发生了一件有趣的事：公司生产了一种作模型用的两冲程柴油机，供业余爱好者们制作车模、飞机模型和船模使用！

It can used to do emission and performance test of two-stroke engines.

主要用来做两冲程通用汽油机的排放及性能实验。

The new plant produced the first batch of vehicles DKW two-stroke motorcycles, small cars and mini-van.

新厂生产的第一批车是DKW的两冲程摩托车、小型轿车和小型厢式货车。

Guide slots (108) in a guide sleeve (32) receive a stop pin (52) carried by a plunger shaft (48), and the slots (108) define two axially and circumferentially spaced lower stops (104, 106) for aspirating and dispensing strokes respectively.

在引导衬套(32)中的引导狭槽(108)装有止动器销(52)，该止动器销(52)装在柱塞杆(48)上，该狭槽(108)确定了两个轴向和周向间隔开的下部止动器(104、106)，分别用于吸取冲程和分配冲程。

In October, 1883, he established "the benzene tribuluscompany and the Lai 茵 coal gas engine plant", in 1885 he has madethe first benzene tribulus patent vehicle at Mannheim, this vehicle isa three-wheeled automobile, uses a two strokes simplexes 0.9horsepower gasoline engine, this vehicle has had modern automobilesome essential features, like the spark ignition, the water coolingcirculation, the steel pipe frame, the spring 悬架, the rear wheeldrive front wheel changes and applies the brake the handle and so on.

苯茨，首次试验成功一台二冲程试验性发动机。1883年10月，他创立了&苯茨公司和莱茵煤气发动机厂&，1885年他在曼海姆制成了第一辆苯茨专利机动车，该车为三轮汽车，采用一台两冲程单缸0.9马力的汽油机，此车具备了现代汽车的一些基本特点，如火花点火、水冷循环、钢管车架、钢板弹簧悬架、后轮驱动前轮转向和制动手把等。

Designed for rackmount or table top use, the 8804 features 16 long-throw channel faders with associated mute switches and two long throw master output faders.

的机架式或桌面使用而设计，8804有16个长冲程相关的静音开关和两个长冲程主输出推子通道推子。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。