Interspecific competition between trichogramma confusum and t . pretiosum on corcyra cephaloica factitious eggs 拟澳洲赤眼蜂和短管赤眼蜂在米蛾多卵上的种间竞争
With different wind speed , breezes travel through the tubes and thus leave beautiful melodies 根据声乐原理，簧片震动后，长铜管能发出低音，短管能发出高音。
Check valve and butterfly valve combinations are very popular ; normally a short spool piece is required between the valves 止回阀和蝶阀组装是很常见的，通常需要在阀门之间增加一段短管。
There ' s the thin vermicelli （ “ little worms ” in italian ） , the short and tubular macaroni , the long and wide lasagne noodles , and perhaps the most popular , spaghetti 有纤细的意大利细面条（意大利文的“小虫” ） 、短管状的意大利通心面、长宽形的意大利宽面条，还有可能是最受欢迎的意大利面。
For above ground installation , the receiver & launcher shall be horizontal , which center is about 1m high from ground , and shall be connected to underground pipe by nozzle stub and bend but not skewed crossing connection 地面时，收发球筒为卧式，中心距地面高度一般为1米左右，通过短管及弯管与地下管线连接，不宜采取斜交叉连接。
For above ground installation , the receiver & launcher shall be horizontal , which center is about 1m high from ground , and shall be connected to underground pipe by nozzle stub and bend but not skewed crossing connection 地面安装时，收发球筒为卧式，中心距地面高度一般为1米左右，通过短管及弯管与地下管线连接，不宜采取斜交叉连接。
We report the case of an 18 - month - old male toddler who was presented with swelling at the medial aspect of the left ankle and walked with a limping gait for one month 摘要软骨母细胞瘤是一种少见之良性骨肿瘤，通常以长骨之骨髓端较易发生，尤其以胫骨，股骨和肱骨之骨髓端最为常见，少部份发生在扁平及短管状形骨之骨髓，如膑骨或跟骨等处。
One of fillers is ldpe tube that is the particular patent product in china . this product has many good characteristics such as environmental protection , cleanness and keeping original form of cushion and toy in a long period ; meanwhile , it is very popular in japan , korea and north america 而其填充物之一的ldpe短管是公司在中国所独有的专利产品，该产品环保卫生，且能长久保持枕垫玩具的原有形状，当前在日本韩国及北美市场上十分畅销。
Adopting the sectionalized lumped parameter method with dynamic friction , the dynamic performances of the typical segments in lineweb , i . e . short channels , rectangular elbows , forked channel , chamber of additional holes , are analyzed using the effective approach - power bond graph ( pbg ) . thus the pbg model of lineweb with the sectionalized lumped parameter method i : ; iii established . this model is proven by digital simulation and physical experiment 作为校验线网性能约束的后续环节，本文引入包含动态摩擦的管路分段集中参数键合图模型，对集成块线网中存在的短管、直角拐弯、分支管路、工艺孔容腔等典型结构进行分析，建立起具有典型结构的线网的分段集中参数键合图模型，并通过数字仿真和物理实验得到验大连理工大学博士学位论文证。
