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词语孔洞拆分为汉字：
孔字的拼音、笔画、偏旁部首、笔顺、繁体字，孔字字源来历，孔字演变
小洞，窟窿：～穴。～眼。～洞。～方兄（指钱，因旧时的铜钱有方形的孔，恢谐含鄙意）。很：～急。～武有力。量词，用于窑洞：一～土窑。姓。……
洞字的拼音、笔画、偏旁部首、笔顺、繁体字，洞字字源来历，洞字演变
窟窿，深穴，孔：～穴。山～。～箫。空～。漏～。～府。～天。打洞，打成洞（穿透）：一狼～其中。透彻地，清楚地：～悉。～穿。说数字时用来代替零。……
汉语拼音：kǒng dòng
近义词：孔隙
The layered elements become a motif for the house and is able to be seen from multiple rooms through square apertures and openings.
由此，分层式结构成为了整栋住宅的设计主题，透过室外散布的方形孔洞可以窥见多个室内空间的这一主题元素。The reef limestones are characterized by plentiful fractures and pore spaces. showing a nature of good reservoirs.
礁灰岩具有大量裂隙和孔洞，是好的储集层。What used to be considered a hole in the sky is now known to astronomers as a dark molecular cloud.
我们曾认为这是天空中的一个孔洞，而现在，天文学家知道这是一片黑暗的分子云。At least one pair of holes symmetrical with the pipe axis as the center are arranged on the net pipe.
所述的网管上可开设有以管轴为对称的至少一对孔洞。So instead, breathe on her, blow lightly, but never blow into any of her orifices.
所以，要轻轻的呼吸，而且不要将气体吹入到任何孔洞里面（译者注：阴道或者尿道）。In an experimental setting, a cavefish can dart among obstacles, moving quickly along their edges and ducking through openings between them.
在实验环境下，穴鱼能够在障碍物之间穿梭，沿着它们的边沿快速移动，还能从其间的孔洞中穿过。The enlarged end of the lower rod sleeve is formed with at least one through hole facing to the porous piece.
中下杆套筒扩大结束形成至少在面向一块多孔洞之一。The higher the surfactant concentration in the water-phase is, the thinner range of the surface porous layer penetrates.
水相中界面活性剂的浓度越高，孔洞由微粒表面向内部分布的距离越小；They were more porous and contained higher levels of carbon, putting them in an unusual class of achondrites known as ureilites.
这些碎片有非常多的孔洞，含碳量高，属于一个称为橄辉无球粒陨石（ureilites）的罕见陨石种类。