Before reversing an HPLC column it is best to consult the column instruction sheet or check with the column manufacturer to see if the column can be reversed .

在反向使用HPLC色谱柱时，最好仔细看一下 说明书或者咨询一下色谱柱生产厂家是否能反向使用。

Before cold-rolled sheet entering tinned unit forward sheet and subsequent plate are needed to connect in order to ensure the continuity of tin production process . It is welded by narrow gap resistance welding . The welds often break in the unit causing the accident .

为保证镀锡工艺生产的连续性，冷轧 薄板进入镀锡机组 前，需要进行前行薄板与后续薄板的连接，通常采用窄间隙电阻焊进行焊接，该焊缝时常会在机组中发生断裂，造成事故。

Good manners dictate that you ask the people for permission before listing their names on your data sheet .

在将他们的姓名列入你的 简历 前，最好先征得他们的同意。

There was a gestation period before the infiltration started when using sheet magnesium as infiltrating agent and the penetration process was controlled by the reaction of liquid aluminum with SiC which led to a slow speed of infiltration . The penetration distance increased parabolically with time .

采用 片状助渗剂Mg，Al液自发渗透 前有一孕育期，渗透过程由Al液与SiC粉体表面的SiO2反应所控制，渗透速度较慢，浸渗高度与时间呈抛物线关系。

Think About Objectives & Before putting pen to paper get a blank sheet and think about exactly which information is essential and specific desired outcomes in relation to the readers .

想好目标& 在动笔在空白 表格 前想好，什么才是读者必需而又特别想要的信息。

Before leaving he went into his office to fill in the daily time sheet .

离开 前，他到自己的办公室填写了日常考勤 表。

The blood flow to the medial muscle and pterygoid muscle were 4.27 times and 4.84 times seperately as much as those before operation . The sheet is shaped sine wave with the die which has considerable elastic restitution .

术 后8周，附丽软组织的血供代偿进一步加强，嚼肌、翼内肌血波量分别为正常水平的4.27倍和 4.84倍。正弦波纹 板的回弹量较大。

Detect the error and write the missing punctuation or your correction together with the word before the punctuation on the answer sheet .

改正错误或补写标点，并将其与 前面的一个单词一起填写在答题 纸上。

With at least a month to go before the relief well to stop the leak in the Gulf of Mexico is completed and with the cost of the clean-up above $ 3bn boosting its balance sheet is more important than ever .

距阻止墨西哥湾漏油的减压井完工至少还有一个月时间，且清理成本超过了30亿美元，因此改善公司的资产 负债 状况显得比以往任何 时候都更加重要。

Experimental characterization of TEM cyclic voltammetry and charge-discharge curve of composite before and after doping shows that carbon nano sheet doping can improve the composites ' supercapacitor performance .

通过透射电镜的表征以及复合 前后的循环伏安曲线、充放电曲线的分析得出：碳纳米 片的掺杂会提高复合材料的比电容。

Before filling out this form read the instructions on the attached sheet .

在填写这 张表格 之前，请先阅读附件上的指示 说明。

Part II : Research work before the expert consultation and the formation of expert advice sheet .

第二部分：专家咨询 前的研究及专家咨询 表的形成。

In the US and UK where before the financial crisis influential financial academics equated balance sheet efficiency with taking on excessive debt business has also had to reduce borrowings .

在金融危机爆发 之前的美英两国，有影响力的金融学者们曾认为，资产 负债 表的高效率意味着背上很高的债务负担。如今，美英两国的公司也不得不降低借贷水平。

Results The quality problem before analysis was 33.4 % in the specimen in patient the error of examinations sheet filling was 97.06 % and the specimen oneself quality problem occupied 2.94 % among them ;

结果分析 前住院标本33.4%有质量问题，其中化验 单填写不合格占97.06%，标本本身质量占2.94%；

This diagnosis came from Tu Chu-chaff . He glanced at Wu Sun-fu fumbled nervously for his snuff-box and gave it to him . Directly Tu Chu-chaff sat down and before he could say a word Wu Sun-fu tossed over a sheet of paper .

竹斋看着荪甫说，慌慌张张地把他那个随身携带的鼻烟壶递过去。杜竹斋刚刚坐下，还 没开口，荪甫就将一 张纸撩给他看。

If the software were smart enough the print job could easily have been abandoned before the second sheet of paper was wasted .

如果程序足够聪明，打印工作就可以 在第2 页纸浪费 之前轻易地取消。

Before you download a Safety Data Sheet you will be asked to give your name and address in order to make it possible for us to notify you if and when the downloaded SDS is updated .

在您下载安全数据 表 之前，您需要提供您的姓名和地址以便我们对数据安全表更新时通知您。

If reinforced concrete members are strengthened by non-prestressed carbon fiber sheet before making full use of the strength of carbon fiber sheet the width of cracks has been beyond the upper limit specified in governing code .

但是非预应力碳纤维布加固钢筋混凝土梁时， 当碳纤维 布的强度 还不很大时，混凝土裂缝已经很大，不能满足结构正常使用状态下的裂缝要求，碳纤维布强度得不到充分发挥。

What does an entrepreneur need to do before even trying for a formal term sheet ?

谋取一份正式的投资条件 清单 之前，创业者需要做什么？

Mr carker the manager standing on the hearth-rug before the empty fireplace which was ornamented with a castellated sheet of brown paper looked at the captain as he came in with no very special encouragement .

经理 卡克先生站在没有生火的、用牛皮纸城形图案装饰着的壁炉前面的地毯上，以不特别欢迎的眼光看着走进的船长。

He appeared to backtrack on this claim last month before strengthening the message yesterday that the balance sheet would keep expanding under all universes .

上月，他似乎弱化了这一承诺。 但他昨日强调说，在任何情况下，欧洲央行的资产 负债 表都将继续扩大。

Before coming to the hksar please peel off the self-adhesive visa label from the backing sheet and stick it onto a blank visa page in your travel document .

在来港 前，请将可自动黏贴的签证标签从底 纸撕下，贴在你的旅行证件空白签注页内。