retractable ore barrel
可缩小取出的岩心筒
Technique of Putting in Stalk Through Pulling Apart Core in Coring with the Long Core Barrel in Sichuan Hard Rocks
硬地层拨断岩心接单根长筒取心技术
ball bearing core barrel
滚珠轴承内筒不转的岩心筒
I hardened my heart and took the smoke-rocket from under my ulster.
我硬下心肠，从我的长外套里取出烟火筒。
A revolving cylindrical sieve used for screening or sizing rock and ore.
滚筒筛一种圆筒形的可旋转的筛，用于岩石和矿石的筛分或大小测量
The test and popularization results of the method of putting in stalk through pulling apart core by Using the long core barrel in Sichuan hard rocks are simply presented in this article.
本文简要介绍了拨断岩心接单根方法在四川硬地层长筒取心中的试验和推广效果。
hachure graving with pentagraph
缩小机拉斜线（花筒雕刻）
Steps must be taken to reduce the problem to manageable proportions.
必须采取措施将问题缩小到可控制的范围。
Note: in soft rocks extracting fixed protection may leave unsightly damage in the form of a crater.
注意：在岩质松软处取出固定支点时，可能会在对小洞造成难以察觉的损坏。
duplex flat table pantograph engraving
双面印花滚筒平台缩小雕刻机（同时雕刻一对正反花纹的滚筒）
Anti-collapse Performances Analysis on Reinforced Concrete Frame-core Structures with Relatively Small Core;
内筒较小的框架—核心筒结构的抗倒塌性能分析
His fore finger, projecting from the sleeve of his coat, pointed up to the wretched little creature on the pole.
他从大衣袖筒里伸出食指，指着趴在电杆顶上的那个可怜的小东西。
For direct quantitative measurement of porosity, reliance must be placed on formation samples obtained by coring.
孔隙度直接定量测量的可信度取决于取心所得地层的岩样。
telescopic shock absorber
伸缩筒式减震器;可伸缩减震器;筒式减震器
New Ideas and Construction Practice Concerning Air Shaft Material in the Compressible Layer
立井井筒可缩层选材的新思路与施工实践
Trying to Discuss the Possibility of Directly Measuring Gas Saturation in Core
试论直接测定岩心天然气饱和度的可能性——介绍冷冻法封闭岩心流体的压力取心技术
The lens can be manipulated to produce an enlarged or teduced image.
镜头可调整，以摄制出放大或缩小的图像。
The oldest sediments cored to date are about 150 million years old.
到目前为止取出的最老沉积物的岩心是大约1．5亿年以前的生成。