查询词典 variation

Cylinder pressure data at different oil temperatures (20℃、30℃、40℃) and corresponding different spark angles (0oBTDC、6oBTDC、12oBTDC ) were sampled in experiments of BN491DQ engine. Emissions at start were measured. Ignition advance angle, combustion cycle variation, intake system difference affect cold start. The deeply research has got some important conclusions.

实验采集了BN491DQ发动机在不同机油温度（20℃、30℃、40℃）对应不同点火提前角（0oBTDC、6oBTDC、12oBTDC）的气缸压力数据，对冷起动的排放，点火提前角、燃烧循环变动、进气系统差异对冷起动的影响进行了深入研究。

Both species demonstrated seasonal variation, as corticosterone was higher in the rainy season than in the dry season.

两种羚羊皮质激素水平有季节性变化，表现为雨季皮质酮水平高于干旱季节。

The origin, propagation and modulation of cosmic ray can be studied through its variation.

通过研究宇宙线变化可以帮助我们了解宇宙线起源及传播区域的有关信息。

The time variation of the cosmic ray flux is one of crucial problems in the field of cosmic ray physics, solar geophysics and astrophysics, etc.

宇宙线强度随时间的变化、时间变化的起源和与天体物理因素的联系是宇宙线物理、地球物理和天体物理学科中最复杂的问题之一，具有重要的物理意义。

With excellent response characteristics, high detection sensitivity and low operational cost, differential optical absorption spectroscopy is a powerful tool to trace concentration variation of trace HCHO.

差分吸收光谱技术由于时间分辨率高、高灵敏度和操作费用低等特点非常适合对大气中痕量气体HCHO进行实时追踪。

Because of economical globalization, diversity and variation of costumer demand and high rapidly technology innovation, the life circle of products are getting shorter and shorter.

在经济全球化趋势，顾客需求的差异化及迅速变化，加上技术的日行千里以及创新技术的突飞猛进等因素，使得产品的生命周期越来越短。

He proved that the left ward turning of Yangtze river diluted water is mainly resulted from the interaction between the bottom declining and the lag of the transversal pressure gradient, made the numerical simulation and preliminary study on the thermohaline staircase structure formation mechanism, improved American Academician Wunsch's inverse method of ocean circulation, jointed the discover of " Mindanao Under Current", which is the first ocean current found and named by Chinese scientists and widely accepted over the world, simulated the horizontal and vertical carbon fluxes in East China Sea by a simple ecosystem model, estimated the photosynthesis efficiency less than 8% in Jiaozhou Bay, applied statistical downscaling technology to Chinese coast and Japanese islands realizing the simulation and forecast of sea level low frequency variations, pointed out that the quasi-periodicity of El Nino events should be resulted from the interaction between the 3~4 year oscillation in tropical Pacific and decadal oscillation in the northern Pacific of middle latitudes of the air-sea coupled climate system and at decadal time scale the precipitation influence on sea level variation along Chinese coast and Japanese islands becomes more important, which is closely related to the decadal oscillation of air-sea coupled climate system, therefore precipitation most likely play a major role for the decadal oscillation formation;; proposed Extended Associate Pattern Analysis to analyse combined observed datasets of sea surface temperature and sea level pressure or geopotential hight at 1000 hPa (GH1000) over the Pacific and related seas.

论证了长江冲淡水向左转向主要由于底形下倾与横向压力梯度滞后相互作用的结果。对温盐阶梯结构的形成过程及物理机制进行了数值模拟与初步探讨。改进了美国科学院院士Wunsch的大洋环流反演法。与胡敦欣院士共同发现了"棉兰老潜流"，这是第一支由中国科学家发现、命名并得到普遍承认的洋流。借助较为简单的生态模式数值模拟了东海的水平与垂直碳通量；胶州湾浮游植物的屏蔽效应可以使底层海水温度在升温季节降低2度，由此推算出其光合作用的效率应小于8%；浮游植物春季水华的生物过程实际上强化了海水层化的物理过程。将统计学降尺度技术应用于日本列岛和我国沿海，实现了海平面长周期变化的模拟与预报。

Results Obvious variation of the courser and distribution of medial plantar artery was observed.

临床应用皮瓣修复16例足跟区和10例前足区恶性肿瘤切除后软组织缺损。

This PPT introduces covariance function and its formula for calculating the variation function and its formula, Kriging interpolation process, and finally given an example based Kriging interpolation.

详细说明：本PPT介绍了协方差函数及其计算公式，变异函数及其计算公式，克里格插值方法的过程，最后给了一个基于克里金插值的实例。

The fruit size variation range of the progenies was 5 to 110 grams, formed a skew curve and inclined to the crab apple parents.

并初步探讨了大苹果与小苹果杂种后代几种主要性状之间的相关与回归。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐