切割

A novel method was proposed for the direct determination of biomarkers,such as n-alkanes,terpanes and steranes in crude oil by GC/MS coupling with backflush cutting technique and micro-fluidic splitter.

研究了一种反吹切割微流控装置气质联用技术直接分析原油中的正构烷烃类、萜烷类、甾烷类生物标志物的新分析方法。

Crude oil ; biomarker ; backflush cutting ; micro-fluidic splitter

原油；生物标志物；反吹切割；微流控装置

Backtrack is used to solve false negative problem.

回溯切割线是解决错反问题的有效方法。

You can have a ring with a princess, round, oval, marquis, pear, heart, emerald, baguette, or trillion cut diamond.

你可以有一个环形的公主，圆形，椭圆形，侯，梨，心脏，翡翠，面包，或万亿切割钻石。

For the status of the fishing technology of deep and ultra-deep slim hole was started later, the lack means of dealing with accidents and little fishing experience on the oil field, from the actual conditions of the Tarim oil field and in research on the basis of information at home and abroad, this article analyzed the technical difficulties of fishing in the deep and ultra-deep Slim hole and the importance of preparations before fishing, and then summarized the powdered magnesium technology, sets milling fish-neck technology , Venturi joints with milling technology and fishing rope-type fish with spiral bailer grab technology.

针对深井超深井小井眼打捞工艺技术起步较晚，事故处理手段单一及现场打捞经验不足的现状，本文从塔里木油田实际情况出发，在调研国内外资料的基础上，分析了深井超深井小井眼打捞的技术难点及打捞前期准备的重要性；归纳总结出了适合塔里木地区深井超深井小井眼事故处理的镁粉切割工艺技术、套铣鱼颈工艺技术、文丘里接头配合磨铣工艺技术及螺旋捞钩打捞绳类落物工艺技术。

Deep and ultra-deep wells;slim hole;fishing;Radial Cutting Torch;sets milling;spiral bailer grab;Venturi;management system

深井超深井；小井眼；打捞；镁粉切割；套铣；螺旋捞钩；文丘里接头；管理系统

This machine applies to the baiting of casement profile for aluminum door and window.

该机用于铝门窗角码下料，并可用于塑料型材的切割下料。

It was made from a piece of Celtec material by cutting it out on a band saw and then filing and sanding to shape.

它是由一块celtec材料的切割，这列于1带锯机，然后归档和砂光形成。

Next cut out on the outside of the lines with a band saw.

接下来用带锯沿画线的外面切割。

In order to reduce the error, cutting materials should be fastened to the panel of work bench.

在切割或穿孔时，工件既不能移动，也不能振动。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。