Why do you want to live here it's a dreadful hole!

你為什么要住在這里--這小地方簡直糟透了。

We will have to drill a hole of 1.4 millimeters.

我們必須要鉆一個1.4毫米的孔。

We will have to drill a hole of 1.4mm.

我們要鉆一個1.4毫米的孔。

Before it is possible to drill this deep hole, scientists will have to overcome a number of problems.

但是，還有一種更加隱蔽有害的污染A级毛片免费久久下载，它專門影響城鎮(zhèn)地區(qū)，侵襲我們的日常生活人人看人人摸人人操人人看，那就是噪音午夜福利理论片中文字幕。

How long does it take to drill a hole?

打一口井要多長時間？

I was living a hole - and - corner existence of daily drudgery.

我正在學(xué)英語最新2020中文字幕永久人人视频。很想有個和我一起學(xué)習(xí)的朋友

Well, I've dug this hole.

好国产99精品免费线观看视频，我已經(jīng)挖好了坑。

But this is a difficult hole that we've dug ourselves into.

但這是一個十分艱巨的任務(wù)亚洲不卡AV不卡一区二区岛国。

Since a 7-solar-mass is too large to be a white dwarf or neutron star, it must be a black hole.

因為有著7個太陽質(zhì)量的星體不可能是白矮星或中于星黄片国产免费看，所以它一定是黑洞。

Methods of echolocation, pontoon and surveying level by down hole gauge are introduced.

簡要介紹了目前常用的回聲法大学生美女一级片、浮筒法和井下壓力計探測法探測液面的方法国产一区二区三区性交黄片，總結(jié)了各自的優(yōu)缺點和適用范圍。