前应

出发前应查看一下油和水。

Check the oil and water before setting off .

使用前应检查瓶子是否渗漏。

Check bottles for leakage before use .

有心肺疾病或血液循环问题的人在乘坐飞机前应寻求医生建议。

Anyone with heart , lung or circulation problems should seek medical advice before flying .

教职工及学生返校前应报告健康状况及过去14天的活动轨迹，同时要求有发热、乏力、干咳或腹泻等症状的人员就医排查。

Staff and students should report their health conditions and whereabouts in the last 14 days to the school before returning to campus . Also , schools are required to urge people with symptoms , including fever , fatigue , dry cough or diarrhea , to seek medical help .

安装windows前应做哪些准备？

What preparations should I make before installing windows ?

对Williams综合征患者，术前应进行更为详细的检查。

More detail examination is necessary in SVAS cases with Williams syndrome .

利用MODIS热红外数据反演地表温度前应处理的几个问题

Several Problems before inversion of surface temperatures by MODIS thermal infrared data

结论60Co照射消毒和高压蒸汽消毒都可以使藻酸盐溶胶pH值下降，使用前应作pH值调整；

CONCLUSION : Both sterilization methods and way of 60Co radiation can cause the decrease in the pH of alginate solution and pH regulation is necessary before usage .

但对于血管重度狭窄（≥70%）拟行颈动脉内膜剥脱术或经皮颈动脉成形术的患者，术前应行DSA检查。

For patient with severe stenosis (≥ 70 % ), which is considered as candidate for endarterectomy and percutaneous transluminal carotid angioplasty , DSA should be performed .

对刀仪在加工前应固定于光滑的机床工作台面上，然后进入CNC的手动方式，使刀具接近对刀仪。

Before machining , the tool detection should be fixed on the smooth surface of the machine 's worktable , and enter the manual mode of CNC , make the cutter be closed to the tool detection .

候选的EMS审核员候选人在受雇于认证机构前应具备这些领域的某些相关经历，而EMS审核组长培训课程应只是把他们的知识向针对审核过程引导中关注审核员知识的一种手段。

EMS auditor candidates should have some relevant experience in these areas before hire and the EMS lead auditor course should be a means to focus their knowledge toward the audit process .

实际资料计算与分析表明：直接预测X（t）中X°（t）的变异，是较为可靠地间接提取震前应力异常信息的有效途径。

The calculation and the analysis of actual data show that the anomalous change of X ~ 0 ( t ) estimated directly in X ( t ) is a effective way to more reliably and indirectly obtain stress anomaly information during the pre-earthquake .

分析了珠海市基础空间数据的质量现状，并从GIS建库角度出发分析了基础空间数据入库前应做的质量检查和预处理的内容，并在此基础上，提出了一些建议。

The quality for Zhuhai base spatial data is mainly analyzed in this paper , and data quality checking and data pre-processing are discussed to build Zhuhai base spatial data base from the viewpoint of GIS database , also several pieces of suggestion are given in the end .

本文根据唐山震区的地质构造模拟制作光弹模型，以N60°E方向加压进行唐山震前应力场的光弹性模拟实验。

The purpose of this paper is to outline a photoelastic experiment with a model for the tectonic stress field of the Tangshan region under a compression in N60 ° E direction .

这引擎在起动前应预热多长时间？

How long should the engine warm up before we start ?

禽蛋在被使用前应清洗干净，而后应洗手。

Wash eggs before use , and then wash your hands .

羊毛平针织物在裁剪和缝纫前应先缩水。

Wool jersey should be shrunk before being cut and stitched .

喂！离开前应先关掉我们啊！

Hey , remember to switch us off before leaving home !

对，拍摄前应先咨询女孩的意见。

You got to tell the girl before you tape her .

行次全子宫切除术前应排除宫颈和内膜恶性病变。

Malignant cervical and endometrial diseases should be excluded before subtotal hysterectomy .

战场损伤评估前应明确的问题包括损伤装备和战术要求两个方面。

The first part is composed of damage equipment and tactics requirements .

焊丝在使用前应清除其表面的油污，锈蚀等。

Oil stain and rust stain on welding wire shall be removed .

使用前应在辊棒表面均匀涂上耐火涂层。

You must tip roller with refractory coating before use .

验收前应清除绝缘子表面的污垢。

The dirt on the insulator surface shall be removed before inspection .

在缝制布料前应将其按合适尺寸裁剪。

Cloth must be cut into perfect dimensions before sewing .

在喷砂清理前应清除焊接飞溅。

Weld spatter shall be removed prior to blast cleaning .

临床诊断不明确的患者在确诊前应避免激光或冷冻等不恰当的治疗方法反复刺激。

Some improper treatment should be avoided before the diagnosis was quite clear .

雨季前应做好隧道洞门。

Tunnel portal shall be finished before rainy season .

使用机器前应详细阅读使用说明书。

Read instruction manual carefully before operating this machine .

面试前应更新你的履历。

You should update your resume before an interview .