Through experiments and numerical simulation methods a study has been conducted of the characteristics of convection heat exchange of ridged internal-finned tubes and a comparison of the above characteristics with the flow and heat transfer characteristics of straight internal-finned tubes performed.
通过试验和数值模拟方法对一种带突起内翅片管内的对流换热特性进行了研究,并与直内翅片管的流动与传热特性进行了对比,实验表明带突起内翅片管的换热特性优于直内翅片管,起到了强化传热的作用,但同时其流动阻力相应增加。
Studies on the Mechanisms of the Scaleless Wings Mutant in the Silkworm, Bombyx Mori;
家蚕无鳞片翅突变体scaleless产生机理的研究
A Taxonomic Study on the Genus Stenus (Coleoptera:Staphylinidae:Steninae) from Zhejiang and Shanghai Area, China.;
中国沪浙地区突眼隐翅虫属分类研究（鞘翅目：隐翅虫科：突眼隐翅虫亚科）
darken with a brownish tinge, as of insect wings.
昆虫的翅膀变成暗褐色。
TWO NEW SPECIES OF PSEUDOLOXOPS KIRK. FROM CHINA (HEMIPTERA: MIRIDAE)
突额盲蝽属二新种(半翅目:盲蝽科)
Systematics of Diopsidae from China (Diptrea: Diopsidae)
中国突眼蝇科系统分类研究（双翅目：突眼蝇科）
TWO NEW SPECIES OF THE GENUS TELEOPSIS FROM HAINAN,CHINA(DIPTERA,DIOPSIDAE)
海南泰突眼蝇属二新种记述(双翅目,突眼蝇科)
"a complete, espunexpected, change "
骤变,突变,突然的改变
Then, all at once, the duckling raised his wings and they flapped with much greater strength than before.
突然这只小鸭举起他的翅膀，而翅膀拍动的力气要比以前大。
A new species of the Genus Trocnadella(Hemiptera: Cicadellidae: Iassinae) from China
缺突叶蝉属一新种记述(半翅目:叶蝉科:叶蝉亚科)
A small hooklike projection or process, as at the end of a bone.
翅钩；钩形突一种小的钩状突起或隆起，比如在头的末端
A spur or spurlike projection, such as one found on the base of a petal or on the wing or leg of a bird.
距骨或距状突起距骨或距状突起，如花瓣根部和鸟的翅膀或腿部
Loong has not wings. But Ying Loong has wings. Loong will become Ying Loong after a one-thousand-year' s self-tempering.
（龙没有翅膀。但是应龙有翅膀。龙经过一千年的修炼可以变成应龙。
Any of various insects of the order Lepidoptera, characteristically having slender bodies, knobbed antennae, and four broad, usually colorful wings.
蝴蝶多种鳞翅目类昆虫，特征为身体细长，触须突出，有四个通常是彩色的宽大的翅
Spontaneous and induced mutation occur with animals viruses.
动物病毒的突变有自发突变和诱发突变。
DNA-negative mutant
ＤＮＡ－负性突变型
DNA-delay mutant
ＤＮＡ－延迟突变型种
DNA-arrest mutant
ＤＮＡ－制动突变型种
an abrupt end [change]
突然的结局 [变化]