1.
4 Rappel/abseil stations should be installed where climbers lower off trees.
4下降点的设置处，应选在攀登者须经树林而下降的地点。
2.
3 Rappel/abseil stations should be installed where descending by foot is likely to cause erosion problems.
3下降点的设置处，应选在以步行方式下降会产生侵蚀问题的地点。
3.
a lowering of temperature below the freezing point
下降到冰点以下的温度
4.
The Modified Steepest Descent Method──Best Point in Steepest Descent method
改进的最速下降法─最好点最速下降法
5.
Prices have reached rock-bottom.
物价已下降到最低点.
6.
lowering of freezing point
冰点下降（测分子量用）
7.
The reputation of the conjurer was rapidly sinking below zero.
魔术师的信誉一下子下降到最低点。
8.
I'll give you something to keep your blood pressure down.
我给你一点药把血压降下来。
9.
Well, the level 's down a bit. Better top it up .
嗯，水位已下降了上点。 还是把它注满吧。
10.
We saw the level of the water fall slightly .
我们看到水面稍稍下降了一点。
11.
Following the blanching step, the product is packaged and the temperature is reduced to well below the freezing point of water.
漂白之后,包装产品,降温至冰点以下。
12.
Tonight the temperature will fall to 3 degrees below freezing.
今夜的温度将降至冰点下3度.
13.
19.0 percent met Grade IV, down by 7.1 percentage points;
19.0%的断面为Ⅳ类水质，下降7.1个百分点；
14.
7.8 percent met Grade V, down by 5 percentage points;
7.8%的断面为Ⅴ类水质，下降5个百分点；
15.
So put on more clothes in case the temperature goes down.
所以多穿点衣服，万一温度下降呢。
16.
a reduction of 12 percent in violent crime.
严重犯罪率下降12个百分点
17.
Profits have fallen by something over three percent.
利润已下降百分之三多一点。
18.
The rate of women illiterates dropped by 1.5 points of percentage.
女性文盲率下降1.5个百分点；