Simple Present的例句大全

And will learn The simple past tense, The present perfect tense, The past perfect tense as well as The future tense.

这个学期，我们学到了过去时，现在完成时，过去完成时和将来时等。

To the deficiency of a kind of controller on electro-hydraulic proportional valves at present, this paper adopts the PWM control technique and puts forward a kind of improved project, for making its principle simple and performance credible.

针对现用的一种电液比例阀控制器的不足之处，本文采用PWM控制技术，提出了一种改进的方案，使之具有原理简单、性能可靠的特点。

The present perfect simple is often used to talk about past actions and events which are completely finished.

一般现在完成时经常用于谈论过去的行为和事件其完全结束。

At the end, the essay make a simple description for security system of life guidance curriculum and propose the present shortages.

最后对生活指导课程的保障体系进行了说明，提出了本论文的不足之处。

Objective To present a simple and reliable method for the reconstruction of metacarpophalangeal joint by the cartilage transplantation of metatarsophalangeal joint.

目的利用自体跖趾关节软骨移植修复掌指关节缺损的软骨面，为掌指关节创伤性关节炎提供简便、可靠的方法。

In the paper, we present a notion about two directional zero knowledge proof, and study the relation between two directional zero knowledge proof and traditional one directional zero knowledge proof. We propose several simple two directional zero knowledge problem proof protocols.

提出了双向零知识证明的概念，研究了双向零知识证明与传统的零知识证明之间的关系，设计了两个最基本的双向零知识证明协议。

Its model is succinct, and it can mould simple indoor demeanor; while the tactile feel and impression of gold and silver can present another splendid extreme.

其造型简洁，可塑造极为简约主义的室内风范，而金与银的触感与观感，却又可以呈现极为富丽堂皇的另一个极端。

Objective To present a sensitive and simple method to detect short tandem repeat ( STR).

目的介绍一种灵敏、简便的方法检测短串联重复序列（STR）。

numerical analysis is performed for examples of thin-walled beams with simple section and mixed sections. results from present method are compared with those from three-dimensional coupled analysis using ansys and the lewis's added mass method.

分别对简单断面和混合断面的算例进行了数值分析，并将本文方法所得结果与ANSYS耦合场分析方法以及刘易斯附加质量法所得结果进行比较。

the present invention provides a part conveyor device which can miniaturize with a simple structure and can reduce the noise.

本发明提供一种能够以简单的结构小型化，而且能够减小噪音的部件搬送装置。

we present sorex, our modified heterogeneous data model, is efficient on querying simple heterogeneous data.

例子表明，所作的模型系统可以实现对简单的异构数据进行集成。

a simple caudex (enlarged stem base) or creeping rhizomes can be present.

简单甘草（扩大干基）或匍匐根茎可以赞成。

the present invention needs no ribs for support, has simple making process, and is in submersible and favorable to raising speed.

本发明无须设置任何肋骨撑档，制作简单，保证全艇浸水仍然不沉，有利于提高赛艇的速度。

simple discussion on bug of present fixed price method of building products

浅论现行建筑产品定价办法的不足

Aromatic: Describes a simple , often fruity smell or flavour present in young wine . See BOUQUET.

芳香: 口感强烈花香浓郁的葡萄品种,橡木陈年以及在酒瓶中的变化而产生的香味.

The present paper developes a simple method for calculating the rovibrationallyexcited states of diatomic molecules.

发展了一种较简便的方法来计算双原子分子的振转激发态.

The proposed system is simple, comprehensive, and conforms with present embryological knowledge.

所建议的这一系统既简单又全面, 并且符合现在胚胎学知识.

We will present here a simple negative-ion scheme.

我们将在此介绍一下简单的负离子的体系.

Past simple or present perfect?

一般过去时还是现在完成时?

Base on the basic theory of finite-element analysis, hypostatic modeling for four-side simple supporting plank was upbuilt with ANSYS software. Three-dimensions hypostatic model and plane model were present by simulating the strain distribution of four-side simple supporting plank with damage using finite-element analysis software.

介绍了有限元分析的理论基础，用ANSYS软件对四边简支板试件进行了实体建模，比较了三维实体模型和平面模型特点，并指出了采用平面模型进行建模的合理性；