My addition can be written as $_ = lc; as well, but explicitly stating the subject of the lc() function makes the one-liner more legible, in my opinion.
我所添加的段也可以写成 $_ =lc; ，但是我认为显式地声明 lc()函数的对象使一行程序更清晰。
Cylinder liner is the main part of maritime shipping diesel engine, its operating well or not influences on the performance of the diesel engine.
气缸套是船舶柴油机的主要部件，其工作的好坏直接影响着柴油机的性能。
The flexible liner system along canal slopes was discussed in detail with respect to the properties of the related expansive soil as well as the design methods.
结合南水北调中线工程输水干渠膨胀土的工程特性深入论证了进行渠坡柔性衬砌的必要性，并提出了系统的设计思路。
For the well completion method by slotted liner, well completion parameters, single slotted liner length and pipe string structure in well completion are optimized.
针对割缝衬管完井方法，进行了完井参数、单根割缝衬管长度、完井管柱结构的优化设计。
Reasonable aperture of sand prevention meshwork is important if liner in sand prevention of horizontal well is adopted.
水平井若采用筛管防砂，合理的防砂网孔径的确定尤为重要。
The software of HWCS developed by ourselves, has been used to predict the productivity of slotted liner well completion.
利用所研制的水平井软件HWCS对割缝衬管完井的产能进行了预测。
So the method has merits of wide liner range, low cost, little disturbance and easy work. It fits batch operation well.
此方法线性范围较宽，干扰小，操作简单，低成本，适合于大批量样品测量。
This paper introduces a new cementing tool named circulating blind pipe, and it's mechanical structure, operation principle and successful applications while cementing a liner in a lost well.
详细介绍了一种新型固井用井下工具——可循环盲板的结构、工作原理及其在漏失井筛管固井中的成功应用。
The external non liner loading of well casing can be improved by changing elastic parameters of the cement mantle.
水泥环的弹性参数和泥岩含水量等对套管外载有一定影响。
There are 2 new well completions, that are hydraulic sand jet perforation and hydraulic slotted liner technique.
有2项新型完井工艺，即水力喷砂射孔和水力割缝。
A well completion that has no casing or liner set across the reservoir formation, allowing the produced fluids to flow directly into the wellbore.
在储层段没有设置套管或衬管的完井。这种就使产出的流体直接流入井筒。
The short liner cementing technique can successfully solve some difficult technical problems, such as casing collapse, loss circulation during ultra deep exploratory well drilling operations.
超深探井在钻进过程中出现套管挤毁、井漏而常规封堵无效等复杂问题，影响了下一步正常钻进，短回接尾管固井技术能很好地解决该技术难题。
The flexible winter-proofing gloves feature that on the basis of existing gloves, a back liner and the finger liners are additionally used for resisting cold well.
一种防寒冷风又灵活的手套，它是在已有的防寒冷的手套里料中，增加了一个手套背、手指两侧里料的厚度。
The existence of abundant unsaturated liner compounds and stenols as well as high CPI values of liner compounds shows the low maturity of the crude oils.
原油中存在不饱和链状化合物及其高的CPI值和甾烯醇都说明原油具有低的成熟度。
The existence of abundant unsaturated liner compounds and stenols as well as high CPI values of liner compounds shows the low maturity of the crude oils.
原油中存在不饱和链状化合物及其高的CPI值和甾烯醇都说明原油具有低的成熟度。
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