在...保证下

Screed coat: To guarantee qualiTY and reduce waste of materials ,levelingtreatrnent should be made to the unlevel walls by use of 1:3 cement mortar,flatnesswill be 4 mm for 2m.Next step cannot be done until flatness of walls is inspected OK

找平层：为保证质量，减少材料浪费，要求对不平整的墙面做好找平处理，用1：3水泥砂浆，平整为2m靠尺4mm，并应在墙面平整度检验合格后方可进行下一步工序。

The whole vinification process is done under oxygen preservation.

整个葡萄酒的酿造过程都必须保证在含氧的条件下进行。

Under the socialist system of market-oriented economy,building local public finance has become an necessity to ensure and promote the local economy, development of social undertakings and vitalization of finance.

在社会主义市场经济体制下，建立地方公共财政，已成为保证和促进地方经济、社会事业发展、振兴财政的迫切之需。

When a ductile material is tested, the reduction in cross-sectional area due to waisting causes an increased stress without an increased force, to ensure that extension proceeds uniformly.

当韧性材料被测试时，由于颈缩使横载截面面积减小，以至在受力没有增加的情况下引起应力的增加，以保证延伸继续如常进行。

The analysis of the performance of HRSG water level control system shows that, under the disturbance of load and inlet working substance of HRSG, the unit response can be controlled effectively, and the unit stability and control quality can be improved, so the unit control performance is improved obviously.

对余热锅炉水位控制系统的特性分析表明，水位控制系统能够在负载和余热锅炉入口工质参数扰动下有效地控制机组响应特性，保证机组的稳定和控制品质，控制性能得到明显改善。

The zero voltage space vector is used to keep the steady state and reduce frequency of inverter.

并且，零电压矢量被引入以保证在一定的情况下保持当前的转矩和磁链状态，减少逆变器开关次数。

Firstly, this paper puts forward an improved authentication and key distribution scheme for internet environment, in which we adhibit multilevel authentication center, encryption technology of DES, RSA and one-way function to actualize the safety of communication among the different user on network and reduces the workload of the authentication institution; at the same time, this scheme can also assure the security of network. Besides, it use the temporary symbol and the responds" sign of both-side correspondent to replace time stamp and applies them to internet communication to countercheck "rebroadcast attack and accordingly resolves the problem that it needs synchronization for network clock.

本文在首先提出一种改进的Internet网络环境下的认证及密钥分配方案，该方案考虑采用了多级认证中心，DES、RSA和单向函数加密机制，实现了网络上不同用户间的安全通信，降低了网上认证机构的工作量，同时也能够保证网络的安全性；并用通信双方的临时标志和响应者标识来代替时间戳应用于Internet通信中以防止&重播&攻击，从而解决了以往需要网络时钟同步这一难题。

Aralia has good economy values;it could be used for eating,drug,landscaping and industry material etc.however,wildlife resource iS close to perdition by over collection for 10ng time,So it is necessary to probe into artificial breeding pattern to ensure this resource can be used constantly.

楤木有较好的经济价值，可供食用、药用、园林绿化、工业原料等。野生资源在人们长期的过度超采下已濒临枯竭，因此，探索人工繁育方式以保证资源的可持续利用势在必行。

Again, the purpose of the media fill is to assure that product can be aseptically processed without contamination under operating

培养基灌装的目的是保证在操作条件下的无菌过程不被污染物污染。

Again, the purpose of the media fill is to assure that product can be aseptically processed without contamination under operating conditions.

培养基灌装的目的是保证在操作条件下的无菌过程不被污染物污染。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。