And then look at the emissions that come off from that rock,
然后检测石头发出的光
and that's really important
这是非常重要的
because it can tell the differences
因为这可以区分
between different types of rocks.
不同种类的岩石
So if we come across a rock that looks substantially different
当我们发现一块岩石
from rocks we've looked at before,
和以往发现的岩石明显不同
then we might want to approach those samples,
我们就会靠近这些样本
put out the arm,
伸出机械臂
and start interrogating that rock or that outcrop
用机械臂上的仪器
with instruments that are on the arm.
对岩石或表面岩层进行分析
An element analyser and a very nice microscope,
我们先用元素分析仪和强大的显微镜
and if we examine the outcrop or the rock with those tools
检测岩石或表面岩层
and decide it's worth even further exploration,
如果认为它值得进一步研究
then what we do is we sample the rock.
我们就会对岩石取样
We drill into the rock,
在岩石上钻孔
we create some powder with the sampling system
通过取样系统制成粉末
and then we deliver that powder into SAM.
之后送回到火星样本分析仪里
The chemical analysis of this powdered rock
对岩石粉末进行化学分析
is one of the most important tests in the mission.
是这次任务中最重要的检测项目之一
That's why the team are still running tests
所以该小组仍在地球上测试
on SAM's twin back here on earth.
火星样本分析仪的复制品

重点解释：

1.on the arm 臂上

例句：We are going to work on the arm next week.
我们下周要到农场里工作。

2.drill into 训练(某人)掌握(某种技能, 法则等)

例句：The English teacher tried to drill into his students how to writearticles.
这位英语老师试图通过反复练习教给学生写作。