In the end , the economic viability and feasibility of pneumatic defrosting are demonstrated , and the application prospect is forecasted 最后对气动除霜的经济性和可行性进行了必要论证，并展望了其应用前景。
If your refrigerator is not a frost - free or cyclic defrost model , defrost regularly and do not let ice accumulate for more than 6 months 若你选用的不是无霜雪柜或循环除霜的型号，应定期为雪柜除霜，别让霜雪厚度超过6毫米。
A beam of light is directed on to the mirror and the reflected beam is monitored electronically in order to detect and control the formation of dew or frost 一束光线会直接射在镜片上，而反射的光线会受电子仪器监察，以测出及控制露珠及霜的形成。
But the frost , which is accumulated on the evaporator for certain surrounding conditions , can degrade the performance of ashp and the periodical defrost is necessitated 然而机组的本身特点决定了在一定环境下必然存在结霜的现象，因此需要周期性地除霜。
The property ' s feeding sites and frost - free water areas make it suitable for african elephants , which can stand 10 feet tall at the shoulder and weigh more than 10 , 000 pounds , officials said 人员的说法，这家牧场的草地以及永不结霜的河流非常适宜非洲象的生长。匹兹堡动物园及该动物园的ppg
I have struck , do you realize , incredible floridas where mingle with flowers the eyes of panthers in human skins ! rainbows stretched like bridles under the seas ` horizon , to glaucous herds 你可知我闯入怪诞的佛罗里达那儿花的颜色混合豹的眼珠在人的皮肤上！长虹如缰绳挥出套住海平面青霜的马群！
Unless sun lovers continually reapply sunscreen , agents in the sunscreen itself can attack the skin and leave the body susceptible to ultraviolet radiation , researchers say 研究人员称，除非热爱晒太阳的人们不断地反复涂抹防晒霜，否则防晒霜的成分本身会攻击皮肤，使身体更容易受紫外线辐射的影响。
Unless sun lovers continually reapply sunscreen 2 agents 3 in the sunscreen itself can attack the skin and leave the body susceptible 4 to ultraviolet radiation 5 researchers say 研究人员称，除非日光浴爱好者不断地反复涂抹防晒霜，否则防晒霜的成分本身会攻击皮肤，使身体更容易受紫外线辐射的影响。
The hussars , fine ladies , witches , clowns , and bears , coughing and rubbing the hoar - frost off their faces , came into the hall , where they were hurriedly lighting candles 化装成骠骑兵太太巫婆丑角狗熊的人在接待室里咳嗽几声，清清嗓子，擦干净挂了霜的面孔，然后进入人们急急忙忙地点燃蜡烛的大厅。
Unless sun lovers continually reapply sunscreen ( 2 ) , agents ( 3 ) in the sunscreen itself can attack the skin and leave the body susceptible ( 4 ) to ultraviolet radiation ( 5 ) , researchers say 研究人员称，除非热爱晒太阳的人们不断地反复涂抹防晒霜，否则防晒霜的成分本身会攻击皮肤，使身体更容易受紫外线辐射的影响。
