四、條件（161-200）

161. To the extent that it is real, the interaction with the lower boundary seems a good candidate to explain the high persistence of the system.

如果這一結果可靠的話，那么這一系統與下邊界的相互作用似乎可看作解釋它長時間繼續存在的可靠原因。

162. Two fronts will exist if we have three air masses, a coal, a warm, and a cold, moving from west to east one after another.

如果我們讓三個氣團（一冷，一暖又一冷的）依次由西向東運動，則會出現兩個鋒。

163. If the input file exists, then we must create a new output file.

如果該輸入文件存在，那么我們必須開辟一個新的輸出文件。

164. (According to the weather report, the typhoon will pass over the region)If so, the drought will be relieved.

（根據天氣報告稱，此次臺風將經過這個地區）如果是這樣，旱象將得到緩和。

165. If the moon were, for instance, over the site of Miami, there would be a tidal bulge there and also on near the west coast of Australia.

例如，假如月亮在邁阿密測點的上空，那里就會出現海潮的隆升，而在澳大利亞西海岸附近的海面也會出現隆升。

166． If the earth’s axis did not tilt, there would be no seasonal change on it.

如果地軸不傾斜，地球上就沒有季節變化。

167. Were there no such superior laws, physics would be impossible as an exact secence over any sufficiently long period.

如果沒有這些顛撲不破的定律，物理學就不可能在任何足夠長的歲月作為一門精確的科學而存在。

168. If this situation should occur, the fram would become unusable.

如果出現這種情況，框架就成為無用的了。

169. Should the current be cut, the coil would return to its original position.

如果電流切斷，線圈就返回到原來位置。

170. Had Franklin known what we know about lightning in those days, he probably would not have undertaken such a dangerous experiment.

如果富蘭克林當時與今天我們關于閃電知識的認識一樣，他可能不會進行那種危險的（風箏）試驗了。

171. If we had not taken necessary precautions, the typhoon would have inflicted heavier damages.

如果當時不采取必要預防措施，臺風就會造成更加嚴重的損害。

172. If it were not for the modern equipment, such experiments would not be performed.

如果沒有這些現代化設備，這些實驗就不能進行。

173. With the equipment the experiment would be readily conducted.

如果有了這些設備，試驗就會順利進行。

174. Water vapor is lighter, which would otherwise not rise into air.

水汽（比空氣）較輕，否則它不會升到空中。

175. Since this frame of reference-the earth –is rotating, motions that would be straight in a stationary frame of reference appear curved to the observer on earth.

由于參照系—地球—是旋轉的，所以在靜止參照系中應是呈直線運動，在地球上的觀測者 看來就成為曲線運動。

176. This is clearly not the case, if it were true, prediction of the tides could have been done for centuries.

很清楚，情況并非如此。假如真是這樣，潮汐預報可能已發布幾個世紀了（事實并非如此）。

177. Provided we make on further assumption, the Copernican principle leads to a rather similar universe model.

如果我們作出進一步的假設，哥白尼原理會導致一個相當類似的宇宙模式。

178. Computers can yield accurate results providing that they are fed with reliable information to start with.

計算機可給出準確結果，如果給予它們可靠信息使之開始工作的話。

179. Orchard without precaution will suffer heavy loss in case cold wave occyrs.

如果寒潮發生，不采取預防措施的果園將會受到嚴重損失。

180. For instance, suppose the operator received one Fortran job, one Cobol job and another Fortran job.

例如，假定操作員接受了一個Fortran作業，一個Cobol作業，然后又是一個Fortran作業。

181. There is no change in the motion of a body unless a resultant force is acting upon it.

除非有一合力作用于物體上，否則物體的方向是不會發生變化的。

182. In so far as linear motion is concerned, a body is in equilibrium if the vector sum of the forces acting upon it is zero.

就線性運動而論，如果作用于嚴格物體上的諸力的矢量之和是零，那么這個物體就處于平衡狀態。

183. Thus, Fig. 5 is similar to Fig. 4b insofar as the same recombination and filters have been applied to both.

因此，就兩者都采用同樣的合成和濾波方法而言，圖5與圖4b相同。

184. Atmospheric research is often both basic, in sense that it concerns the fundamental understanding of atmospheric processes, and applied, in the sense that it is directly useful.

大氣研究常常是基礎性的（就其涉及對大氣過程的基本性理解而言）又是應用性的（就其是付諸直接應用而言）。

185. As far as we know, the problem has not been attacked at home and abroad.

就我們所知國內外對這一問題尚未著手研究。

186. As long as the counter is positive, contral is returned to the user program.

只要計數器是正數，控制器就返回到用戶程序。

187. Be it that the temperature is beyond the rang (e.g. 32o to 41oF as the minimum cardinal temperature for wheat) the crop will be checked from growing.

如果溫度超出某一范圍（例如小麥的最低溫度為32o--41oF），則作物生長受阻。

188. On the assumption that speed is kept constant, distance increases with time.

假如速度不變，則距離隨時間增大。

189. The computers available can meet the needs except that data are sent in bulk.

只要資料不是大批送來，現有這幾臺計算機是夠用的。

190. With favorable light and moisture conditions a plant grows at greatest rapidity if there is the optimum temperature for it.

在合適光照和水分條件下，如果有最適宜溫度，則植物以最快速度生長。

191. Without reliable data, prediction has no foundation.

沒有可靠的資料，預報就沒有基礎。

192. Sheets of newly formed sea ice break into pieces under stress of wind and waves.

大塊新形成的海冰在風和海浪的作用下裂成碎片。

193. The annual total rainfall of 300 mm seems somewhat low for the region at these latitude.

就位于這些緯度的這一地區來說，年總降水量300毫米似乎少了一些。

194. Depending upon our job scheduler we would make both 6K jobs wait or run one of them in the 10K region.

我們可使兩個6K作業等待，或者把其中一個在10K區運算，視我們作業的調度程序而定。

195. Given wind speed, duration, and fetch, it is possible to predict the size of the waves generated by a given storm.

人給出了風速，它的持續時間和吹程，就有可能預報由某一風暴產生的海浪的高度。

196. Other things being equal, the evapotranspiration rate decreases with increasing humidity.

當其它條件相同時，蒸散率隨濕度增大而減小。

197. Such being the case, the understanding of nature would be greatly improved.

如果是這樣，那么我們對大自然的認識將會大為提高。

198. T will represent temperature alone in this book unless otherwise stated.

在本書T將只表示溫度，除非另有說明。

199. Unless destroy or influenced in some way by ocean boundaries, waves continue to travel for long distances in the direction that the wind was blowing when they formed.

波浪除非被海洋邊界以某種方式消除或影響，發展它就會繼續沿著其形成時的吹向而運動很長距離。

200. Combined with extremely high waves generated by the storm, hurricanes surges can be highly destructive.

如果與風暴中產生的巨浪相結合，颶風涌浪（風暴潮）可具有極大的破壞性。