two stroke

基本解釋

The vessel to be propelled by a single-acting two stroke supercharged cross head Diesel engine, acting to a fixed pitch propeller .
該船的主機為單作用，二沖程，帶渦輪增壓器的十字頭柴油發(fā)動機，并且螺旋槳為定距槳。
The experimental results have shown that exhaust emissions from two stroke motorcycle with the catalytic converter and feeding valve for secondary air have been reduced obviously .
試驗表明：安裝催化轉化器和二次空氣供給閥后的二沖程摩托車的排放有了明顯的下降。
In the meantime, The matching about catalytic converter with two stroke and four stroke motorcycle is discussed.
同時討論了催化轉化器與二沖程、四沖程摩托車匹配的問題。

There are two kinds of strokes. An ischemic stroke happens when a blood vessel in the brain gets blocked.
On the y axis here it's the percent of people with these two conditions who have cardiovascular disease--or stroke rather 5%--less than 5% and a little over 5% with the stroke as the outcome.
軸表示患有心血管疾病的人同時患有,或不患有代謝綜合征的百分比,就中風來說,分別是小于5%和略大于5%
耶魯公開課 - 關于食物的心理學、生物學和政治學課程節(jié)選
A study published in Stroke last year involved about two thousand people with an average age of sixty-two.

The BR500's four-stroke engine is five times cleaner than the standard two-stroke models.
NPR: L.A. Looks to Cut Smog with Leaf Blower Trade-In