我在矿山垃圾场捡废铁是违法的吗
01:58
明日之后矿坑之下怎么拍
明日之后带上相机，可到矿坑之下，慢慢的拍摄。
挖红板岩实方和拉方对比
你好，挖红板岩实方和拉方都是用来测试红板岩的强度和稳定性的方法，但它们的实施和测试结果的解释略有不同。挖红板岩实方是一种在红板岩上挖出一个实体块并进行测试的方法。这个实体块的大小和形状可以根据需要进行调整。在进行测试之前，需要测量红板岩的密度和水含量，并在挖出实体块后再次测量密度和水含量。然后，将实体块放置于一个测试机器上，逐渐增加荷载并记录下产生的应力和应变。最终，可以得出红板岩的抗压强度和抗拉强度等参数。拉方则是一种在红板岩上进行横向拉伸测试的方法。在进行测试之前，需要测量红板岩的密度和水含量，并制备一块规定尺寸的试样。试样被放置在测试机器上，在逐渐增加荷载的同时记录下产生的应力和应变。最终，可以得出红板岩的抗拉强度等参数。因此，挖红板岩实方是一种直接测试红板岩实体的方法，可以得到更全面的力学参数信息；而拉方则是一种更加标准的测试方法，可以用来比较不同红板岩试样之间的差异。
beneath 的用法词义,造句 以及辨析
beneath fml
adv.
1.in a lower place; below.在下方；在下面
2.directly under; underneath.在底下,在正下方
eg.We looked down from the plane at the fields spread out beneath.
我们从飞机上俯瞰下面一片片的土地.
prep.
1.lower than; below 低于；在…下方;
covered or concealed by被…覆盖,被…隐藏：
2.under the force,control,or influence of 在…力量、控制或影响之下
lower than,as in rank or station 低于…,如在等级或地位上低于
3.unworthy of; unbefitting 不值得；有损于
eg.The earth lay beneath a blanket of snow.大地被厚厚的白雪覆盖.
The ship sank beneath the waves.轮船沉没于波涛下面.
a village beneath the hill 山下的村庄
to feel the sand beneath one’s foot 感觉到脚下的沙子
She has a lot of sympathy with those beneath her.她十分同情那些地位比她低下的人.
It was beneath me to beg.不值得我去乞求.
Such behavior is beneath you.这种行为与你的身份不符.
Usage under / beneath / underneath / below
1.under is the most common word when one thing is directly under another thing,or covered by it.
beneath can also be used in that way,but may suggest that the two objects are not close to each other; it can also be used in poetic or literary writing.
eg.Under the bed / under blanket
The submarine is waiting,far beneath the ship.潜艇远远地在那艘船下面等着.
They strolled together beneath the summer moon.他们在夏夜月光下散布.
2.under ( opposite over ) is used when there is movement from one side to another.
Underneath is used instead of under when a:to give more force to the idea of covering,touching or hiding.B:at the end of the sentence
eg.The letter was pushed underneath the carpet.信被推到地毯下.
The old mine goes right underneath the city.老矿井恰好就在城市的下面.
She wears a read coat with a blue dress underneath.她穿了一件红外套,里面是蓝色的裙子.
3.below ( opposite above ) suggests only that one thing is in a lower position than another
eg.There is a lake below the village,further down the valley.在村庄脚下山谷的另一头有一个湖.
