Take the condom by holding the border . be sure the curly part facing outwards . use thumb and forefinger to squeeze air out of the closed end of the condom to store sperm 手拿安全套的边沿，确保可卷曲部份向外，用拇指及食指轻轻挤出安全套前端小囊的空气，以便存留射出的精液。
It is the special equipment of keeping food fresh which removes the air out of the cups or boxes and fills nitrogen or other gases after the vacuuming 适用范围：微波菜肴、卤菜、鱼肉制品；畜禽、水产品；生鲜、瓜果、蔬菜、菌菇类；糕点、面食制品；腌腊制品、茶叶、人参、上等草药等需保鲜的各类农副产品。
Motor vehicles need energy to accelerate ( overcome inertia ) , to push the air out of their way ( aerodynamic drag ) , and to overcome the friction from tires , wheels and axles ( rolling resistance ) 带发动机的车辆需要能量进行加速(克服惯性阻力) ，推开路上的空气(空气动力学拖曳力) ，并克服轮胎、车轮和车轴的摩擦力(滚动阻力) 。
While utterly fair in his treatment of the bottle stopper options , he , like me , feels a tendresse for natural cork but is delighted that it no longer enjoys an ill - deserved monopoly on keeping the air out and the wine in 尽管他对待各种材质瓶塞的立场完全公正，但他与我一样，也对天然软木塞情有独钟，不过令他欣悦的是，在防止空气进入和保持葡萄酒不外洒方面，天然软木塞不再享受它不应得到的垄断地位。
Porcelain stone exploited from a mine is changea into brick - form mud block , through the processes of water - ramming , washing , decontaminating , and depositing . then , the mud bolck is treated with water for farther decontaminating , and is twisted with hand or treaded with feet for squeezing air out of the blocks and for distributing water content well in the block 从矿区采取瓷石，经水碓春细，淘洗，除去杂质，沉淀后制成砖状的泥块。然后再用水调和泥块，去掉渣质，用双手搓揉，或用脚踩踏，把泥团中的空气挤压出来，并使泥中的水分均匀。
It becomes a complete ventilation access if has vent - pipe . vent - pipe can discharge all mirage and muddy air out of door , and meanwhile inhales clean and fresh air through gaps of window and door . so the whole bath room will be in a minus - press , and make you feel in distinct and soothing air 浴霸在装上通风管并通往室外后，形成了一个完整的换气通路，可以有效地将浴室内的各种雾气、浊气可靠的排到室外，同时通过窗户、门等缝隙吸入新鲜干净的空气，使整个浴室内处于负压，让人能在一个清新的环境中沐浴。
